C6H12O6 is the molecular formula for 6-carbon monosaccharides, such as glucose, fructose, and galactose , is the molecular formula of this sugar .
What is molecular formula ?
A molecular formula indicates the type and number of atoms of each element present in a molecular compound. In many cases the molecular formula is the same as the molecular formula. The molecular formula for methane is CH4, and since it contains only one carbon atom, so is the molecular formula. However, sometimes the molecular formula is a simple integer multiple of the molecular formula. Acetic acid is an organic acid . Its molecular formula is C2H4O2. Glucose is a simple sugar that cells use as their primary source of energy. Its molecular formula is C6H12O6. The structures of both molecules are shown. Although they are very different compounds, they both have the same molecular formula CH2O.
We first need to find the empirical formula, which represents the smallest whole number ratio of elements in the compound. After we determine the empirical formula, we determine the empirical molar mass.
If the empirical molar mass is the same as the molecular molar mass, then the empirical formula is also the molecular formula.
If the empirical molar mass is not the same as the molecular molar mass, we divide the molecular molar mass by the empirical molar mass, which will give us the factor to multiply by the subscripts in the empirical formula. This will give the molecular formula.
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it took 20 sec for the temperature to rise form 0 degress to 212 degress when a thermometer was taken from a freezer and placd in boiling water. explain why at some moment in that interval the mercury was rising at exactly 10.6 degress/sec
Placed in boiling hot water and the freezer. Explain why the temperature was rising at a specific moment within that interval. 10.6°F/sec. 212°.
What does the word "digress" mean?When you veer off topic, you discuss or write about a different subject for a while before returning to your original topic. I've gone off topic a bit to explain the scenario thus far, so let will now summarize. She departed from the topic of her prepared remarks to honor the president.
Does diverge imply disagreement?The definition of "digress" (pronounced "dars") in the Webster Encyclopedic English Dictionary as well as the Cambridge Dictionary is "to wander away or veer from the current topic or subject of conversation or writing."
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Is cadmium oxide binary ionic or ternary ionic
Answer:it’s binary ionic
Explanation:
The compound cobalt (II) sulfate forms a hydrate with 6 water molecules per formula unit. What are the name and
formula of the hydrate?
What is the wavelength of 1.28 x 10 17 Hz wave
Answer:
2.34 x 10⁻⁹ m
Explanation:
To find the wavelength, you need to use the following equation:
λ = c / f
In this equation,
-----> λ = wavelength (m)
-----> c = speed of light (3.00 x 10⁸ m/s)
-----> f = frequency (Hz or s⁻¹)
You can find the wavelength by plugging the given value and constant into the equation and solving for "λ". The final answer should have 3 sig figs like the given value (1.28 x 10¹⁷ = 3 sig figs).
λ = c / f <----- Given Equation
λ = (3.00 x 10⁸ m/s) / (1.28 x 10¹⁷ Hz) <----- Insert variables
λ = 2.34 x 10⁻⁹ m <----- Divide
what is the pressure in a 17.0- l cylinder filled with 46.5 g of oxygen gas at a temperature of 320 k ?
The pressure in a 17.0-L cylinder filled with 46.5 g of oxygen gas at a temperature of 320 K is 2.26 atm.
IDEAL GAS LAW:
The pressure of a given gas can be calculated by using the ideal gas law equation as follows:
PV = nRT
Where,
P = Pressure
V = Volume
n = Number of moles
R = Gas law constant (0.0821 molK/Latm)
T = Temperature
Given,
V = 17 L
T = 320 K
R (Gas constant) = 0.0821
According to this question, a 17.0- l cylinder filled with 46.5 g of oxygen gas at a temperature of 320 K.
The number of moles of the oxygen gas (O₂) = 46.9g ÷ 32g/mol = 1.46mol
∴ PV = nRT
P × 17 = 1.46 × 0.0821 × 320
⇒17P = 38.357
⇒P = 38.357 ÷ 17
⇒P = 2.26 atm
Therefore, the pressure in a 17.0-L cylinder filled with 46.5 g of oxygen gas at a temperature of 320 K is 2.26 atm.
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question content areascoring: your score will be based on the number of correct matches minus the number of incorrect matches. there is no penalty for missing matches. use the references to access important values if needed for this question. arrange the following elements in order of increasing metallic character: clear all magnesium strontium calcium beryllium least metallic second least metallic second most metallic most metallic
The following is the order of metallic character from least metallic character to most metallic character:-
Beryllium → Magnesium → Calcium → Strontium → Barium
Metallic character refers to the level of reactivity of a metal. Metals tend to lose electrons in chemical reactions, as indicated by their low ionization energies.
Within a compound, metal atoms have relatively low attraction for electrons, as indicated by their low electronegativities.
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Americium-241 will undergo nuclear decay to become Thallium-205. How many times does it need to undergo each time of radiation to achieve this?
The number of times that it needs to decay is nine times.
What is nuclear decay?
The term nuclear decay has to do with the situation in which a radioactive nucleus is disintegrated in order to form daughter nuclei. We know that the daughter nuclei that is formed depends on the kind of decay that has taken place.
Now we know that the decay that is undergone by the the Americium-241 is the alpha decay in which the mass number is reduced by 4. The implication of this is that from Americium-241 to Thallium-205 we have a decrease in mass of 36 units which means that there have been nine alpha decays.
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be sure to answer all parts. in the following pair of compounds one is chiral and the other is achiral. identify each compound as chiral or achiral, as appropriate. the first compound is (select) and the second compound is
The first compound is achiral and the second compound is chiral.
A molecule is referred to as achiral if it has a plane of symmetry or a center of symmetry. A molecule is referred to as chiral if it lacks a plane of symmetry or a center of symmetry. As compound 1 possesses a plane of symmetry due to the presence of both OH groups at equatorial positions (they are on the same side of the cyclohexane ring) so it is achiral. In structure, both OH groups are on the opposing side of the cyclohexane ring. There is neither a plane of symmetry nor a center of inversion. So, compound 2 is chiral.
The question is incomplete. The complete question is attached as an image.
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review conceptual example 2 as background for this problem. a charged particle moves through a velocity selector at a constant speed in a straight line. the electric field of the velocity selector is 3900 n/c, while the magnetic field is 0.333 t. when the electric field is turned off, the charged particle travels on a circular path whose radius is 4.36 cm. find the charge-to-mass ratio of the particle.
The electric field is turned off, the charged particle travels on a circular path whose radius is 4.36 cm. The charge-to-mass ratio of the particle 6.819*10⁵ c/kg
F=Fe+Fb=0
qvB=qE
v=E/b
Fr=Fb=qvB=mv²/R
qvb=mv²/R
v=qBR/m
v=E/B
q/m=E/RB²=6.819*10⁵ c/kg
Consequently, an atom can be either positive, negative, or neutral. After receiving an electron from another atom, the charged particle becomes negative. If an electron is removed from it, it becomes positively charged. Applications of charged particles are susceptible to electric field and magnetic field management of their motion and energy. According to this definition, a charged particle is a particle that has an electric charge. At the atomic level, an atom consists of a nucleus that the electrons orbit. Protons and neutrons combine to create the nucleus, which has a positive charge. Any charged atom or molecule is an ion. It has a charge because the atom or molecule's number of protons and electrons is not equal. Positivity can be added to an atom.
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How is an atom of the element xenon (Xe) likely to act during a chemical reaction?
(1 point)
It will likely lose electrons.
It will likely gain electrons.
It will likely be unreactive.
It will likely share electrons.
Considering the Noble Gases, the correct answer is the third option: Xenon it will likely be unreactive because it is a noble gas.
Valencia electronsValencia electrons are the electrons found in the last electronic layer (called valence orbitals). These electrons are what determine the ability of the atom to form bonds.
Noble gasesThe noble gases are a group of elements of the periodic table that are characterized, under normal conditions of pressure and temperature, as monatomic gases without odor, without color and with very low chemical reactivity.
The noble gases encompass the elements in group 18 of the periodic table and include six elements: Helium, Neon, Argon, Krypton, Xenon, and Radon.
The noble gases are characterized by complying with the octet rule, that is, they have 8 electrons in their last energy level, with the exception of helium. This complies with the duet rule, because it only has two electrons.
In this way, the noble gases cannot have more electrons in their last energy level, because this level is already complete and stable. In this way, the noble gases have such a low reactivity and do not combine with other atoms, also calling them inert gases.
SummaryIn summary, Xenon is a noble gas and it will likely be unreactive.
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an imaginary planet was just discovered that has a similar environment to our planet earth. all the chemistry is similar except for the values of bond energies. use the planet's given bond energies to calculate the enthalpy of reaction for the combustion of 1 mole of butane.
The combustion of 1 mole of butane is 4997 KJ/mol.
Solution:
The balanced chemical equation for 1 mol of pentane: -
CH3-CH2-CH2-CH2-CH3 + CO2 ⇒ 5CO2+6H2O
Enthalpy of reaction = Enthalpy of products - Enthalpy of reactants
Enthalpy of reactants = (5 C-C bonds)+(12 C-H bond)+(8 O=O bond) = (5×377KJ)+(12×226KJ)+(8×548KJ) = (1885+2712+4384)KJ = 8981KJ
Enthalpy of products = (5×2 C=O bonds)+(6×2 O-H bond) = (10 × 775) KJ + (12 × 519) KJ
= (7750+6228)KJ = 13978 KJ
Enthalpy of reaction = 13978 KJ - 8981 KJ
= 4997 KJ/mol
The warmth of response is the exchange in the enthalpy of a chemical response that occurs at a constant pressure. it is a thermodynamic unit of dimension useful for calculating the quantity of power in line with the mole either released or produced in a reaction. The reaction enthalpy is calculated by subtracting the sum of enthalpies of all of the reactants from that of the products.
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True or false? several food webs can be combined to make a food chain.
Answer:
the answer is true
Explanation:
the reason why is because if you look at it a chemical in a repeating form os a compound so that means it is the same properties for food.
Answer:
True
Explanation:
Many different species eat grass, and rabbits can eat other plants besides grass. Foxes, in turn, can eat many types of animals and plants. Each of these living things can be a part of multiple food chains.
A nonreciprocal crossover causes which of the following products? A) deletion only. B) duplication only. C) nondisjunction. D) deletion and duplication
Duplication and deletion are brought on by a nonreciprocal crossing. When genetic material is transferred to one genome but not the other, this is known as a nonreciprocal crossover.
When genetic material is transmitted to one genome but not the other, this is known as a nonreciprocal crossover. No genetic material will then be added to replace the donated material, leaving the giving chromosome with a loss. Uneven crossing over is a sort of gene duplication or deletion process that eliminates a sequence from one strand and substitutes a duplication from the homologous chromosome during meiosis or from the sister chromatid during mitosis.
The term "independent assortment" describes how different genes or alleles sort into newly formed gametes. Chromosomes are independently divided into different gametes, leading to this independent assortment. Be aware that during crossing over, genes on each chromosome are rearranged.
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how many moles of iron are present in a pure sample weighing 558.4 grams
Answer:
You have to divide grams of iron by molar mass of iron. Molar mass is the same as atomic mass.
558.4/55.8
10.007 moles
Hope this helps!!!
What occurs if kelp is not present to absorb co2 or produce o2? explain the direct and indirect effects on the ecosystem.
If Kelp is absent from the aquatic environment, it will have a negative impact on all other living things because it cannot produce or absorb O2 or CO2.
How does photosynthesis work?
The process by which plants convert carbon dioxide, water, and sunshine into oxygen and sugar-based energy is known as photosynthesis.
Explanation:
The Protista kingdom of living things includes kelp, which can photosynthesize, or use light energy to create nourishment.
CO2 from the atmosphere is absorbed by photosynthesis, which then produces O2 as a gas.
As a producer of aquatic environments, kelp aids in the absorption of CO2 and the release of oxygen into the atmosphere. Other living things use this O2 for cellular respiration.
Other living things in the watery environment will suffer if kelp is not available to absorb CO2 or create O2.
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Which of the following is not required in the synthesis of fatty acids?
A) Acetyl-CoA
B) Biotin
C) HCO3- (CO2)
D) Malonyl-CoA
E) NADH
NADH is not required in the synthesis of fatty acids.
What are fatty acids?Fаtty аcids аre cаrboxylic аcids thаt аre structurаl components of fаts, oils, аnd аll other cаtegories of lipids, except steroids.
Acetyl-CoA is a precursor for the biosynthesis of fatty acids.Biotin is аn importаnt cofаctor for cаrboxylаse enzymes. Аs the nаme sounds, these enzymes аdd cаrboxylic аcid groups (-COOH) to whаtever compound they аct on. In fаtty аcid synthesis, biotin is required by the enzyme thаt forms mаlonyl CoА from аcetyl-CoА.HCO3- (CO2) is required for fatty acid synthesis in extracts from the avian liver.Malonyl coenzyme A (CoA) regulates fatty acid oxidation by inhibiting mitochondrial uptake of fatty acids.Thus, the correct option is E.
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Occurs when the freezing point of a liquid is lowered by the addition of a solute.
When a liquid's freezing point is lowered or lowered by the addition of another component, freezing point depression occurs.
What is freezing point depression?
This will probably be the case for every issue you run into in this course involving freezing point depression as well as boiling point elevation, but it's a good idea to watch out for ions. It is important to note that both nonvolatile and volatile solutions can be modelled by these equations. This implies that the vapour pressure has no bearing on the change in temperature for the purpose of determining the freezing point depression as well as boiling point elevation. Additionally, keep in mind that a pure solvent is indeed a solution that hasn't had anything else dissolved or added to it. We'll contrast the solvent's original properties with those it acquires after being mixed with a solution.
ΔTf= Kf · b · i
ΔTf =freezing-point depression
Kf =cryoscopic constant
b =molality
i =van 't Hoff factor
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Consider a molecule that has carbon as the central atom and is best described by sp3 hybridization. How many other atoms are connected to this carbon?.
According to the molecular geometry, if carbon is central atom and is sp³ hybridized then it is attached to four other atoms.
What is molecular geometry?Molecular geometry can be defined as a three -dimensional arrangement of atoms which constitute the molecule.It includes parameters like bond length,bond angle and torsional angles.
It influences many properties of molecules like reactivity,polarity color,magnetism .The molecular geometry can be determined by various spectroscopic methods and diffraction methods , some of which are infrared,microwave and Raman spectroscopy.
They provide information about geometry by taking into considerations the vibrational and rotational absorbance of a substance.Neutron and electron diffraction techniques provide information about the distance between nuclei and electron density.
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Consider three 5-l flasks, fixed with pressure gauges and small valves, each contain 4 g of gas at 273 k. Flask a contains h2, flask b contains he, and flask c contains ch4. Compare the flasks contents in terms of the characteristics listed.
Three 5-l flasks fixed with pressure gauges and small valves and each contain 4 g of gas at 273k, flask a contains H2, flask b contains He and and flask c contains CH4.
What is pressure?Force of all the gas particle or wall collisions divided by the area of the wall is called pressure.
a) Rank of pressure:
according to formula PV = nRT and when n = m/Mw
PV = m/Mw * R*T
when we have the same mass m and V volume so P will be proportional to the mole weight M such that when M is smaller, then the pressure will be greater
Given, Mw of H2(A) = 2 g ,Mw of He (B) = 4 g , Mw of CH4(C) = 16 g Pressure is :
(A) > (B) > (c)
B) The rank of average molecular kinetic energy:
K = 3/2 KB T
where K is the average kinetic energy per molecule of gas
KB is Boltzmann's constant
and T is the temperature
from this equation, we know that K only depends on T, and when we have the T constant here for A, B, and C, then the rank of K will be :
A = B = C
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For liquids which of the factors affect vapor pressure?a. Volumeb. Humidityc. Surface aread. Inter molecular forcese. Tmperature
For liquids the following factors affect vapor pressure-
Intermolecular ForceTemperatureWhat exactly is vapor pressure?
The equilibrium pressure of a vapor above its liquid (or solid), or the pressure of the vapor created by the evaporation of a liquid (or solid) above a sample of the liquid (or solid) in a closed container, is the vapor pressure of a liquid.
The temperature and intermolecular interactions between molecules affect a liquid's vapor pressure, which changes.
Temperature: As a substance's temperature rises, its vapor pressure also does. However, the vapor pressure decreases as the temperature does.
Molecular types:
The kind of molecules that compose a solid or liquid determine its vapor pressure.
If the intermolecular connections between molecules are quite strong, the vapor pressure will be fairly low.Due to the substance's relative weak interacting force, the vapor pressure will be high.Surface Area: When a solid or liquid interacts with a gas, the vapor pressure is unaffected by the solid or liquid's surface area.
Hence, for liquids the vapor pressure is affected by -Intermolecular Force and Temperature
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saturated liquid water at 150 kpa is contained in an insulated piston cylinder device. energy (2.6 mj). is transferred to the working fluid by a resistance heater. if there is 5 l of fluid, find the entropy change of the water during this process.
The entropy change of the water during this process is 5.4634KJ/K
Given:The volume of saturated liquid water in cylinder=5l
Pressure=150kpa
Q(added)=2100kg
At 150kpa,temperature is same as atm presuure=384.37k
[tex]Q=420KJ/KG[/tex]
[tex]Entropy=Q(added)/T[/tex]
[tex]Entropy=2100/384.37[/tex]
[tex]Entropy=5.4634 KJ/K[/tex]
Give the formula for entropy change.
Change in entropy ΔS = ΔQ/T.
What is the entropy change?
Entropy Change can be described as a shift in a thermodynamic system's state of disorder caused by the conversion of heat or enthalpy into work. Entropy is higher in a system with a high degree of disorderliness.
Thus, the entropy change of water during this process is 5.4634KJ/K
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calculate the energies of the states of the hydrogen atom with n=2 and n=3, and calculate the wavelength of the photon emitted by the atom when an electron makes a transition between these two states
The energies of the states of the hydrogen atom with n=2 and n=3, and the wavelength of the photon emitted by the atom is 656 nm.
The energy of the states of the hydrogen atom is given :
En = - ( 13.6 / n² ) eV
for n= 2 , it is given as :
En = - ( 13.6 / n² ) eV
En = - ( 13.6 / 2² ) eV
for n = 3 , it is given as :
En = - ( 13.6 / 3² ) eV
the electron jump between these two state the energy of photon emitted is :
E = | -3.4 eV - ( - 1.52 eV |
= 1.89 eV
the energy of photon is given as :
E = h c / λ
λ = h c / E
λ = ( 6.626 × 10⁻³⁴ J.s× 3 × 10⁸ m/s ) / 1.89 × 1.6 × 10⁻¹⁹ J
λ = 656 nm
Thus, The energies of the states of the hydrogen atom with n=2 and n=3, and the wavelength of the photon emitted by the atom is 656 nm.
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suppose a compound is involved in three different reactions denoted r1, r2, and r3. tripling the concentration of this reactant in all three reactions causes the rates of reaction to increase by factors of 3, 9, and 1, respectively. what is the order of each reaction with respect to this reactant?
Following is the order of the reactions: R1 = 1, R2 = 2, and R3 = 0.
What does the term "response" mean?Resistance or antagonism to an energy, influence, or movement is a reactionary act, process, or occurrence. especially: a reaction to a particular treatment, circumstance, or stimulus; leaning toward a past and typically antiquated political or social system or policy.
What does the word "reaction" signify in chemistry?Chemical reaction is the transformation of one or more substances—the reactants—into one or more additional substances—the products. Elements or chemical substances help compensate compounds. In a chemical process, the electrons that make it up the reagents are rearranged to create multiple products.cts.
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Why is it important to identify the chemical properties of materials? Select all that apply
A. Materials that have a low melting point would be dangerous to use when temperatures are hot.
B. Flammable materials would be dangerous to use near fire.
C. A material's reactivity affects how long it will last under certain conditions.
D. A material's ability to break or bend affects how well it will work for certain uses.
All of the given options are correct and define the chemical properties of materials.
A. Materials that have a low melting point would be dangerous to use when temperatures are hot- Low melting points are very beneficial for a number of reasons, but they also unfavorably have a propensity to be poisonous or radioactive, Low bond energy and non-close packed crystal formations are common characteristics of metal elements with low melting points.
B. Flammable materials would be dangerous to use near fire -Fires are easily started by flammable materials. They can exist as solids, liquids, or gases. Liquid petroleum gas (LPG), paints, varnishes, and lacquers are typical flammable substances encountered in workplaces. Flammable materials present significant
C. A material's reactivity affects how long it will last under certain conditions- The less reactive a reactant is, the more stable it is. This implies that the rate of reaction will be slower the more stable the reactant. 2. Product Stability/Reactivity: The product's formation will be more advantageous the more stable the product is.
D. A material's ability to break or bend affects how well it will work for certain uses. A material's tensile strength, often known as its capacity to withstand being pulled apart by opposing forces, is the maximum tension load it can withstand before breaking. It is the highest strength a metal may acquire during a tension test, also known as ultimate strength.
Hence, all of the given options define chemical properties of materials.
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when a compound donates (loses) electrons, that compound becomes blank. such a compound is often referred to as an electron donor.target 1 of 6 2. when a compound accepts (gains) electrons, that compound becomes blank. such a compound is often referred to as an electron acceptor.target 2 of 6 3. in glycolysis, the carbon-containing compound that functions as the electron donor is blank.target 3 of 6 4. once the electron donor in glycolysis gives up its electrons, it is oxidized to a compound called blank.target 4 of 6 5. blank is the compound that functions as the electron acceptor in glycolysis.target 5 of 6 6. the reduced form of the electron acceptor in glycolysis isblank.target 6 of 6
when a compound donates (loses) electrons, that compound becomes Oxidized. such a compound is often referred to as an electron donor.
when a compound accepts (gains) electrons, that compound becomes Reduced. such a compound is often referred to as an electron acceptor.
in glycolysis, the carbon-containing compound that functions as the electron donor is Glucose.
once the electron donor in glycolysis gives up its electrons, it is oxidized to a compound called Pyruvate
5. NAD⁺ is the compound that functions as the electron acceptor in glycolysis.
6. the reduced form of the electron acceptor in glycolysis is NADH
A substance is said to be oxidized when it loses electrons, loses hydrogen, or receives oxygen.
However, the opposite happens with reduction. In other words, when a substance gains electrons, gains hydrogen, or loses oxygen, it is said to be reduced.
A substance that itself is reduced to oxidize another substance is called an oxidizing agent. Redox reactions occur simultaneously. That is, when one substance is oxidized, only another substance is reduced.
During glycolysis, the six-carbon compound glucose (C6H12O6) loses electrons and is finally converted to a three-carbon compound known as pyruvate (CH3COCOOH). In this process, an oxidant called NAD+ receives electrons and is itself reduced to NADH.
The chemical formula for glucose is C6H12O6, while the chemical formula for pyruvate is CH3COCOOH. Looking at their chemical formulas, it is easy to see that glucose has lost hydrogen compared to pyruvate. That means that glucose has been oxidized. Glucose has 12 hydrogens for 6 carbons, but pyruvate has only 4 hydrogens for 3 carbons. This means that glucose was oxidized in the process because the molecule produced, pyruvate, has relatively few hydrogens.
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Under what conditions of temperature and pressure would you expect gases to obey the ideal-gas equation?.
At high temperature and low pressure conditions of temperature and pressure expect gases to obey the ideal-gas equation.
What is ideal gas equation?
Ideal gas equation is given as
[tex]PV=nRT[/tex]
In this equation, P stands for the ideal gas's pressure, V for the ideal gas' volume, n for the total amount of the ideal gas expressed in moles, R for the universal gas constant, and T for temperature.
Explanation:
As opposed to real gases, which do not adhere to the Gas Laws at all temperatures and pressures, ideal gases do.
Real gases only abide with the Gas Laws at very low pressures and high temperatures. Because of the large amount of free space between the gas molecules in these circumstances, the actual volume may be very small. Additionally, because to their great distance from one another, molecules cannot sense intermolecular forces under these circumstances. Because of this, intermolecular forces are likewise insignificant.
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in a titration, 20 ml of 1.47 m nh3 was titrated with 0.20 m hcl. calculate the ph of the resulting solution after the addition 0 ml of the acid? (give your answer to two decimal places) (kb ammonia
The pH of the resulting solution is 7.
pH is determined by the concentration of hydronium and hydroxyl ions in a solution. pH is also known as the negative logarithm of hydrogen ion concentration.
pH determines the acidity and basicity of a given solution. It determines the number of protons that has been released or donated. In the given condition we have.
1.47 molar NH3that has been titrated to 0.20 molar HCL.
For 20 ml of solution, we get pH of 7.
Therefore, the pH of the give solution is 7.
Titration is used in quantitative tests while maintaining the concentration of the solution. A slight change in color marks the equalizing of volume and concentration.
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A current is passed through three electrolytic cells connected in series containing solutions of silver trioxonitrate (v), copper (II)tetraoxosulphate (VI) and brine respectively. If 12.7g of copper are deposited in the second electrolytic cell, calculate :
A: the mass of silver deposited in the first cell
B:the volume of chlorine liberated in the third cell at 17°c and 800mmhg pressure.
(Ag=108,cu=63.5,1F=96500c,GMV of gas at S.T.P=22.4dm^3)?
Answer: check out the image
Explanation: check out the image
an element of group ii loses two electrons in the process of a chemical combination. what is its ionic charge? choose...
An element of group (II) loses two electrons in the process of a chemical combination. its ionic charge is + 2.
The group (II) element are the alkaline earth metals. metals have tendency to donate the electrons and form cation . the group (II) metal element have tendency to loose 2 electrons and for cation with ionic charge of +2. example :
beryllium atomic number is 4 . electronic configuration is 1s² 2s² it can loose and form Be⁺² , electronic configuration is 1s².
Thus, An element of group (II) loses two electrons in the process of a chemical combination. its ionic charge is + 2.
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a chemist prepares a solution of vanadium chloride by measuring out 1.20 g of vcl3 into a 300. ml volumetric flask and filling to the mark with distilled water. calculate the molarity of anions in the chemist's solution. be sure your answer is rounded to the correct number of significant digits.
The molarity of anions in the chemist's solution is 0.07629 M
What is chemical reaction ?
Chemical reaction, the process by which one or more substances (reactants) are transformed into one or more other substances (products). Substances are either chemical elements or compounds. Chemical reactions rearrange the constituent atoms of reactants to produce different substances as products.
Chemical reactions are an integral part of technology, culture, and even life itself. Fuel combustion, iron smelting, glass and pottery making, beer brewing, and wine and cheese making are just a few examples. Activities involving chemical reactions that have been around for thousands of years. Chemical reactions are abundant in a variety of complex processes that occur in Earth's geology, atmosphere and oceans, and in all biological systems.
1.20 g of VCl3 = mass / molar mass = 1.20 g / 157.3 g/mole = 7.629 * 10^-3 mole.
and
volume of solution = 300ml = 0.300 L
thus
molarity of VCl3 = 7.629 * 10^-3 mole / 0.300 L = 0.02543 M
VCl3 ............> V^3- + 3 Cl-
VCl3 produce three Cl- ions in water.
thus
molarity of Cl− anions = 3 * [VCl] = 3 * 0.02543 = 0.07629M
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