a) The percentage of presence in nature of 1st 2nd and 3rd isotopes is 92.2% 4.7 % and 3.1 %.
b) The chemical symbol for isotopes is ²⁸Si , ²⁹Si , ³⁰Si.
Element with atomic number 14 silicon . chemical symbol is Si.. Four isotopes of silicon's occur in natural environment- ²⁸Si , ²⁹Si , ³⁰Si ³²Si. The ²⁸Si , ²⁹Si , ³⁰Si is stable isotopes. And the fourth one ³²Si is radiogenic. Silicon atom have mass of 28 amu. ²⁸Si is the most abundant isotope of silicon has percentage of 92.2% . ²⁹Si is 4.7 % and the third is ³⁰Si is 3.1 %.
Thus, An unknown element Y with atomic number 14 is found in nature as a mixture of three isotopes. isotopes 28 has percentage of 92.2 % and isotopes 29 which has percentage of 4.7 %.the third isotopes is 30.
a) The percentage of presence in nature of 1st 2nd and 3rd isotopes is 92.2% 4.7 % and 3.1 %.
b) The chemical symbol for isotopes is ²⁸Si , ²⁹Si , ³⁰Si.
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1.You are performing an experiment in the chemistry lab that calls for 3.00 moles of chromium(II) carbonate.
How many grams should you measure out in order to do the experiment?
852 grams of chromium carbonate needs to be measured out to produce 3 moles of chromium carbonate.
What is a mole and how come 852 grams is needed to produce 3 moles of chromium carbonate?Mole , a chemical quantity used to measure the amount of substance in international system.We often use mole as a quantity or a unit of measurment and we also use its formula to calculate out the measurments we need.The formula of mole is mole = given mass/ molar mass.Here is given the number of moles that is 3 mole of chromium carbonate and asked how many grams should be taken.Using the formula m = given mass/ molar mass, we can do it , as an given mass= 3 x 284= 852 grams.To know more about mole visit:
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How many moles of cobalt (Co) atoms are there in 9.00x10^9 (9.00 billion) Co atoms?
Be sure your answer has the right amount of significant digits.
The number of moles of cobalt (Co) atoms in 9.0 x 10⁹ Co atoms is 1.49 × 10-¹⁴ moles.
How to calculate number of moles?The number of moles of a substance can be calculated by dividing the number of atoms of the substance by Avogadro's number as follows:
no of moles = no of atoms ÷ Avogadro's number (6.02 × 10²³)
According to this question, 9.0 x 10⁹ cobalt atoms is given. The number of moles can be calculated as follows:
no of moles = 9.0 x 10⁹ ÷ 6.02 × 10²³
no of moles = 1.49 × 10-¹⁴ moles
Therefore, 1.49 × 10-¹⁴ moles of cobalt are in 9 billion atoms of the element.
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1. When reactants react to form products, it’s technically called the ____________________________________. But sometimes, there’s an opposite reaction that occurs with the products changing back into the reactants; we call this a ___________________________________.
A reaction in which reactants react to form products is called forward reaction. In some reactions, products would change back into reactants which is called backward reaction.
In forward reaction, the reactants react with each other and forms product as a result. The reaction occurs from left to right in an equation.
In backward reaction, the products that was formed would revert back to form reactants due to surrounding conditions. The reaction occurs from right to left in an equation.
The type of reaction where both forward and backward reaction takes place is called reversible reaction. When the rate of the reaction between forward and backward reaction becomes equal, it reaches a state of equilibrium.
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Describe the orbital diagram of an atom with six electrons. Explain how this orbital diagram demonstrates Hund's rule.
From Hund's rule, we can now see why the two 2p orbital electrons occur singly and are not paired in one orbital.
What is the Hund's rule?According to the Hund's rule, we know that before, we can pair the electrons that are present in the atoms of an element, the electrons must first of all occur singly or have the maximum parallel spins before they are pair.
In this case, we have an electron that has six electrons. The electron configuration of the element has been shown in the image attached. we can see that there are two electrons that singly occupy the 2p orbitals.
This serves to validate the Hund's rule.
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Answer:
We have an electron that has six electrons, and there are two electrons that singly occupy the 2p orbitals. According to Hund's rule, electrons arise singly in an atom before pairing occurs.
Explanation:
Please help don’t understand this I attached the question
Answer:
58.32
Explanation:
The mass number is one mole and for Mg it is 24.306 for O it is 15.999 and for H it is 1.008. because O and H have 2, you multiply them by 2 and add all the numbers and it equals 58.32
if the temperature of a 11.5 mL sample of N2 gas is increased from 25.0° C to 75.0° C as its pressure remains constant, what will be its new volume in mL
11.5 ml sample of N₂ gas with 25°C temperature is increases to 75°C in constant pressure. The volume of N₂ gas at 75°C at constant pressure is 13.4 ml
Given that
V1 = 11.5 ml
T1 = 25°C = 298 K
T2 = 75°C = 348 K
We need to find the volume of gas (V2) at 75°C
We know that,
V1 / T1 = V2 / T2
11.5 / 298 = V2 / 348
V2 = (11.5 × 348) / 298
V2 = 13.4 ml
Thus, the volume of gas (V2) at 75°C = 13.4 ml
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i need help with chemistry equation
The amount, in grams, of calcium hydroxide that would be required for the complete reaction with 23.1 g sulfuric acid will be 17.44 grams.
Stoichiometric problemIn order to solve this problem, we first need to get the balanced equation of the reaction:
[tex]H_2SO_4 + Ca(OH)_2 -- > CaSO_4 + 2H_2O[/tex]
For a complete reaction, the mole ratio of the sulfuric acid to calcium hydroxide is 1:1.
Recall that: mole = mass/molar mass
Molar mass of sulfuric acid = 98 g/mol
Mole of 23.1 grams sulfuric acid = 23.1/98
= 0.2357 moles
This means the mole of calcium hydroxide required will also be 0.2357 moles.
Now, let's find the equivalent mass of the calcium hydroxide.
Mass = mole x molar mass
Molar mass of calcium hydroxide = 74 g/mol
Mass of 0.2357 calcium hydroxide = 0.2357 x 74
= 17.44 grams
Thus, the mass of calcium hydroxide that would be needed for a complete reaction is 17.44 grams.
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A weather balloon with a volume of 171 L is launched at 20.0°C at sea level, where the atmospheric pressure is 1.00 atm. The balloon
rises to an altitude of 2.00 x 104 m, where atmospheric pressure is 61.0 mmHg and the temperature is 210.0 K. What is the volume of
the balloon at 2.00 × 104 m?
The volume of the balloon at 2.00 × 104m: 1.52x[tex]10^3[/tex] L
Given:
[tex]P_i[/tex] = 1.0 [tex]atm[/tex] -> absolute atmospheric pressure
[tex]P_f[/tex] = 61.0 mm Hg --> atmospheric pressure
= (61.0/760) [tex]atm[/tex]
= 0.0802 [tex]atm[/tex]
[tex]V_i[/tex] = 171 L
[tex]T_i[/tex] = 20.0 [tex]^oC[/tex]
= (20.0+273) K
= 293 K
[tex]T_f[/tex] = 210.0 K
[tex]\frac{P_i \times V_i}{T_i} = \frac{P_f \times V_f}{T_f}[/tex]
(1 [tex]atm[/tex] * 171 L) / (293.0 K) = (0.0802 [tex]atm[/tex] * [tex]v_f[/tex])/(210.0 K)
[tex]V_f[/tex] = 1.52x[tex]10^3[/tex] L
What is atmospheric pressure?The air around you has weight and it weighs down everything it touches. This pressure is called atmospheric pressure or atmospheric pressure. This is the force that the air above it exerts on the surface when gravity pulls it toward the ground. Air pressure is usually measured with a barometer.
Examples of air pressure, when you press an onion, there is air in the tube and the onion comes out as bubbles. However, there is air pressure on the surface of the liquid. When we release the bulb, water moves inside the tube.
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What is the maximum number of moles of SO3 that can be produced by the reaction of 2.0 mol of S with 3.0mol of O2?
There are 2 maximum number of moles of [tex]SO_{3}[/tex] that can be produced by the reaction of 2.0 mol of S with 3.0 mol of [tex]O_{2}[/tex] .
The chemical reaction of the formation of [tex]SO_{3}[/tex] from S and [tex]O_{2}[/tex] is given as,
2S + 3 [tex]O_{2}[/tex] → 2 [tex]SO_{3}[/tex]
From the above chemical equation we can conclude that the 2 moles of sulfur and 3 moles of oxygen reacts to form 2 moles of [tex]SO_{3}[/tex] .
A chemical equation can be considered in terms of moles , or 6.023 times ten to the 23 , which is a predetermined number of molecules or atoms . We can then calculate the weight required for each compound using moles and atomic weight, which is the weight in grams of 1 mole of a specific element in reaction .
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The attorney opened his case by stating, “The documentary evidence proves that Jared was in the victim’s car on the night of the crime.” What evidence is the attorney MOST likely using to prove this accusation?
A.
He found Jared’s cell phone in the car.
B.
He has witnesses who saw Jared in the car.
C.
He found Jared’s fingerprints in the car.
D.
He has a video recording of Jared in the car.
The evidence which the attorney will most likely use to prove this accusation is Jared’s fingerprints in the car and is denoted as option C.
What is Evidence?These refers to the information and happenings which help to prove that something is true and is used in investigations so as to ensure that the culprit is caught.
In this case, Jared’s fingerprints in the car is the most reliable information which puts him at the scene of the crime as it can't be edited and no fear of false witnesses as a result of this thereby making it the correct choice.
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Answer: C
Explanation:
20 POINTS!
There are two stable isotopes of lithium. The atomic mass of lithium-6 is 6.02 amu, and the atomic mass of lithium-7 is 7.02 amu. The average atomic mass of lithium is 6.94 amu. Can you predict which isotope has a greater abundance based on its average atomic mass? Explain.
The isotope that has the greater abundance is lithium-7
To know which isotope has the greater abundance, we shall detertmine the abundance of each isotope. This can be obtained as follow:
Mass of isotope A (Li-6) = 6.02 amuMass of isotope B (Li-7) = 7.02 amuAverage atomic mass = 6.94 amuAbundance of A (A%) = A = ?Abundance of B (B%) = 100 - A =?Average atomic mass = [(Mass of A × A%) / 100] + [(Mass of B × B%) / 100]
6.94 = [(6.02 × A) / 100] + [(7.02 × (100 -A) / 100]
6.94 = 0.0602A + 7.02 + 0.0702A
Collect like terms
6.94 - 7.02 = 0.0602A - 0.0702A
-0.08 = -0.01A
Divide both sides by -0.01
A = -0.08 / -0.01
A = 8%
Thus,
B = 100 - A
B = 100 - 8
B = 92%
From the above calculations, we obtained:
Abundance of Lithuim-6 = 8%Abundance of Lithuim-7 = 92%Thus, we can conclude that lithium-7 has the greater abumdance
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Which of the following below is the complete ionic equation of the reaction: Calcium nitrate and sodium sulfide solutions react to form solid calcium sulfide and sodium nitrate solution
To find the net ionic equation we must first write the balanced equation for the reaction. We must bear in mind that the reagents Ca(NO3)2 and Na2S are in the aqueous state and as product we will have CaS in the solid state, since it is not soluble in water and NaNO3 in the aqueous state.
The balanced equation of the reaction will be:
[tex]Ca(NO_3)_{2(aq)}+Na_2S_{(aq)}\rightarrow CaS_{(s)}+2NaNO_{3(aq)}[/tex]Ca(NO3)2(aq) + → Ca(aq) + 2Na(s)NO3Now, c(aq)ompounds in the aqueous state can be written in their ionic form, so the reaction will transform into:Na2S +
[tex]Ca_{(aq)}^{2+}+2(NO_3)_{(aq)}^-+2Na_{(aq)}^++S_{(aq)}^{2-}\operatorname{\rightarrow}CaS_{(s)}+2Na_{(aq)}^++2NO^-_{3(aq)}[/tex]So, the answer will be option A
If 0.0687 mol CaCl, is dissolved in water to make a 0.280 M solution, what is the volume of the solution?
Answer: 4.076L
Explanation: The formular for Molarity is moles/Volume
So 0.280M = 0.0687 mol/Volume
Divide both sides by the moles
0.280M/0.0687mol = _______ liters
4.0756 = 4.076 Liters
The Copernican model of the solar system was a
Answer:
Heliocentric system
Explanation:
Copernicus suggested that the Solar System's center should be the Sun rather than the Earth. A heliocentric system is the name given to such a model.
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Can you please tell me
The image they show us is a solubility graph. It tells us the grams of solute that dissolve at a certain temperature. We must first identify the mentioned solute, this is NaNO3. We must draw a vertical line that passes through 30°C and a horizontal line that passes through 90 grams/100g of water.
When tracing the lines we see that the intersection is below the solubility curve of NaNO3. This means that there is less solute than the maximum amount that water can dissolve at 30°C. Therefore, all 90 grams will dissolve and we will have an unsaturated solution.
Answer: Third option. unsaturated
NH3 is a week base (Kb=1.8*10^-5) and so the salt NH4Cl acts as a weak acid. What is the pH of a solution that is 0.059M NH4Cl at 25 c
pH of a solution that is 0.059M NH₄Cl at 25°C is 9.7
pH is the quantitative measure of the acidity or basicity of aqueous or other liquid solutions
Here given data is Kb=1.8×10⁻⁵ and we have to find pH pH of a solution that is 0.059M NH₄Cl at 25°C = ?
So, NH₄Cl dissociates completely in solution into NH₄⁺ and Cl⁻ NH₄⁺ being the conjugate acid of the base NH₃ and has a Ka = Kw/ Kb = 1.0×10⁻¹⁴/1.8×10⁻⁵ = 5.55×10⁻¹⁰ and the solution behaves acidic due to NH₄⁺ as it gives rise to H₃O⁺ on dissociation Cl⁻ because it is the conjugate base of the strong acid HCl is an extremely weak base and is unable to affect the pH of the solution measurably
NH₄⁺ dissociates as follows
NH₄⁺ + H₂O ⇔ H₃O+ + NH₃
So, [H3O⁺] = [NH₃], [NH₄⁺]= c - [NH₃]
Ka = [H₃O⁺] × [NH₃]/[NH₄⁺] =[H₃O⁺]²/{c - [H₃O⁺]}
So, neglecting [H₃O⁺] against c, we get
[H₃O⁺]= (Ka × c)¹/²
[H₃O⁺]=(5.55×10⁻¹⁰×0.059)¹/²
[H₃O⁺] = 1.64×10⁻¹⁰
pH = -log (1.64×10⁻¹⁰)
pH = 10-log1.64
pH = 9.7
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help me PLEEEEEAAASSEE ASAP I BEG YOU IF YOU KNOW THE ANSWER Which compares the effectiveness of methane and nitrous oxide as a greenhouse gas with that of carbon dioxide. Both methane and nitrous oxide are more effective greenhouse gases than carbon dioxide.
Both methane and nitrous oxide are more effective greenhouse gases than carbon dioxide.
Neither methane nor nitrous oxide is a more effective greenhouse gas than carbon dioxide.
Neither methane nor nitrous oxide is a more effective greenhouse gas than carbon dioxide.
Only methane is a more effective greenhouse gas than carbon dioxide.
Only methane is a more effective greenhouse gas than carbon dioxide.
Only nitrous oxide is a more effective greenhouse gas than carbon dioxide.
Only nitrous oxide is a more effective greenhouse gas than carbon dioxide.
Both methane and nitrous oxide are more effective greenhouse gases than carbon dioxide.
Compared to other anthropogenic greenhouse gases carbon dioxide has the largest relative contribution to increasing the greenhouse effect. Compared to other greenhouse gases, carbon dioxide is most effective at trapping heat near the surface. Carbon dioxide is called a greenhouse gas because it is one of the gases in the atmosphere that warms the earth through a phenomenon called the greenhouse effect.
Water vapor is the most powerful greenhouse gas in the Earth's atmosphere and a unique player among greenhouse gases. The amount of water vapor in the atmosphere is usually not directly changed by human actions. It depends on the air temperature. Compared to other anthropogenic greenhouse gases, carbon dioxide has the largest relative contribution to the increase in the greenhouse effect.
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Why is the law of gravity, an example of universal law?
Answer: every object in the universe with some mass attracts every other object. As the law of gravitation could be applied to all such objects, it is also known as Newton's law of universal gravitation, that is, its application is universal.
Explanation:
Least dense and ends with the most
As per the provided figure, there is a presence of the multilayers of substances settled according to their density. The densest liquid will settle at the bottom while the least dense will float at the top.
What is density?Density can be said as the substance's mass per unit of volume when explained in the mathematical terms. The measure of how much dense a substance is can be taken out through a measure of its density.
Layers arrangedAccording to the pic the layers arranged here can be classified according to the order from least dense liquid to the densest liquid according to the provided order
Rubbing alcohol < Dish Wash < Milk < Corn Syrup
Then according to the respective positions of the solids arranged throughout the multilayer of the pic, the provided order can be devised that is from the least dense solid to the densest solid:
Ping pong ball < Beads < Popcorn Kernels < Bolt
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Complete Question
1) Order the following liquids in order form the least dense to the densest. Dish Soap, Rubbing Alcohol, Milk, Corn Syrup.
2) Order the following solids in order from the least dense to the most dense: Bolt, Beads, Ping Pong Ball, Popcorn Kernel
A sample of an unknown gas is found to have a density of 1.31 g/L at a pressure of 0.621 atm and a temperature of 54 °C. Assume ideal behavior. The molar mass of the unknown gas is g/mol.
The molar mass of the unknown gas is 31.74 g/mol
The molar mass of a substance is the mass in grams of 1 mole of the substance
Here given data is sample of an unknown gas is found to have a density of 1.31 g/L at a pressure of 0.621 atm and a temperature of 54 °C and we have to fond molar mass = ?
So given data is
Density = 1.31g/L
Pressure = 0.621 atm
Temperature = 54°C means 54 + 273.15 = 326.15 K
So, the formula is PV = nRT
R = Rydberg constant = 0.0821 atm/k⁻mol
n = PV/RT
n = 0.621 atm×1.31g/L/0.0821 atm/k⁻mol×326.15 K
n = 31.74 g/mol
The molar mass of the unknown gas is 31.74 g/mol
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100 points! Please help!
Suppose 87.1 mL of a 0.190 M solution of Na2SO4 reacts with 143 mL of a 0.311 M solution of MgCl2 to produce MgSO4 and NaCl as shown in the balanced reaction
Na2SO4(aq)+MgCl2(aq)⟶MgSO4(s)+2NaCl(aq)
1. Calculate the mass of MgSO4 that can be produced in the given reaction.
2. Only 0.212 g of MgSO4 are isolated after carrying out the reaction. Calculate the percent yield of MgSO4
1.MgSO4 can be created in the given reaction with a mass of 1.985 grams.
2. MgSO4 has a percent yield of 10.68%.
What is molarity mean?The amount of solution a chemical is present in determines its molarity (M). Molarity is the measure of a solute's concentration in a solution expressed in moles per liter. Molarity is another term for a solution's molar concentration.
1.The following is the full, balanced chemical equation:
Na₂SO₄(aq)+MgCl₂(aq)⟶MgSO₄(s)+2NaCl(aq)
We are aware,
Molarity (M) is the quantity of moles (n) in a liter of solution.
Volume x Molarity equals the number of moles of Na2SO4.
Moles of Na₂SO₄ = 0.190×0.0871
Moles of Na₂SO₄ = 0.016549 moles.
Moles of MgCl₂ = 0.311×0.144
Moles of MgCl₂ = 0.044473 moles.
As can be seen, there are less moles of Na2SO4 present.
Na2SO4 will therefore operate as a limiting agent and regulate the reaction.
Moles of Na₂SO₄ = Moles of MgSO4
Moles of MgSO₄ = 0.016549 moles.
As we are aware,
Mole = mass produced/molecular weight
Molar mass of MgSO₄ = 120grams/mole
substituting the values,
0.016549 = mass of Mg produced/120
Mass of MgSO₄ produced = 1.985 grams.
2. Formula for percentage yield: (experimental mass divided by theoretical mass, multiplied by 100)
Theoretical mass = 1.985 grams
Experimental mass = 0.212 grams.
Percentage yield = 0.212/1.985×100
Percentage yield of MgSO₄ = 10.68%.
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When using the scientific method, which step does a scientist usually perform right after forming a hypothesis? A) Performing an experiment B) Making a prediction C) Reporting experimental results D) Making an observation
what is the color of light from a photon with an energy of 4.40x10^-19 J
The color of light from a photon with an energy of 4.40x10⁻¹⁹ J is red
A photon is an elementary particle that is a quantum of the electromagnetic field including electromagnetic radiation such as light and radio waves and the force carrier for the electromagnetic force
The color of a photon is determined by the wavelength of the emission and photons are quanta of light, meaning they are a specific unit of emitted energy and here given energy is 4.40x10⁻¹⁹J means when it come to visible light the highest frequency color is violet also has the high energy and when the low frequency of visible light which is red has the low energy and here the energy is low that's why the color of photon is red
E = 4.40x10⁻¹⁹ J
E = hc/λ
where, λ is the wavelength, h be the Plank's constant and c be the velocity of light.
h = 6.63 × 10⁻³⁴ Js
c = 3 ×10⁸ m/s
λ = 6.63 × 10⁻³⁴ Js × 3 ×10⁸ m/s/ 4.40x10⁻¹⁹ J
λ = 4.520 nm
So, color of light from a photon with an energy of 4.40x10⁻¹⁹ J is red
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A buffer solution is made using a weak acid, HA , that has a pa of 5 . If the pH of the buffer is 8 , what is the ratio of [A−] to [HA] ?
Answer:
[A-] : [HA] = 1000 : 1
Explanation:
I'm assuming that you mean a pKa of 5 not a pa of 5
For this question, the equation:
pH = pKa + log([A-]/[HA])
plug in pH and pKa
8 = 5 + log([A-]/[HA])
move the 5 from the right to the left
3=log([A-]/[HA])
raise 10 to both sides of the equation to get rid of the log
10^3=10^(log([A-]/[HA]))
1000=[A-]/[HA]
so the ratio of [A-] to [HA] is 1000 to 1
If there are 6.45 x 1020 atoms in a sample of pure silver metal, what is the mass of the sample in grams?
The mass of the sample in grams is 115.53 × [tex]10^{-3}[/tex].
What is atomic mass?The weight of an atom has been its atomic mass. Although the kilogram is the standard international measurement of mass, the unified atomic mass unit, or Dalton, is frequently used to express atomic mass. One Da is equal to one-twelfth of the mass of a free carbon-12 atom in its ground state.
The quantity of material that makes up an element's atom, its atomic mass. It is stated as a multiple of 1.992646547 1023 gram, which is equal to one-twelfth of the mass of the carbon-12 atom, which has an atomic mass of 12 units. An element's atomic unit (amu), on the this measure, is equivalent to 1.660539040 1024 grams. The Dalton (Da) is yet another term again for atomic mass unit which commemorates the English chemist John Dalton.
Silver has an atomic mass of 107.87 g/mol.
There are 6.022 × [tex]10^{23}[/tex] atoms in one mole of anything.
You have 6874 × [tex]10^{20}[/tex] atoms of Ag.
So:
6.45 x [tex]10^{20}[/tex] atoms × 1 mol/(6.022 x [tex]10^{23}[/tex]) atoms × 107.87 grams Ag/mol
= 115.53 × [tex]10^{-3}[/tex]grams
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2. In a sample of copper carbonate, how much copper and oxygen would there be for
5 g of carbon? Use the ratio of copper to oxygen to carbon.
According to the concept of molar mass , in a sample of copper carbonate there would be 26.47 g and 20 g of copper and oxygen respectively.
What is molar mass?Molar mass of a compound or a molecule is defined as the mass of the elements which are present in it.The molar mass is considered to be a bulk quantity not a molecular quantity. It is often an average of the of the masses at many instances.
The molecular mass and formula mass are used as synonym for the molar mass.It does not depend on the amount of substance which is present in the sample.It has units of gram/mole.
Molar masses of an element are given as relative atomic masses while that of compounds is the sum of relative atomic masses which are present in the compound.
In the given problem , sample of copper carbonate has copper, carbon and oxygen in the ratio of 63.54:12:48.Now, for 5 g carbon , amount of copper is calculated as,
5×63.54/12=26.47 g
And amount of oxygen is calculated as,
5×48/12=20 g.
Hence, for 5 g carbon there is 26.47 g copper and 20 g oxygen in copper carbonate sample.
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1.Electrons in the outer energy shell that may participate in chemical reactions are called the_____ electrons.
a.noble gas b.core c.inert d.valence
Answer:
d valance electrons
Explanation:
Valence electrons are outer shell electrons with an atom and can participate in the formation of chemical bonds. In single covalent bonds, typically both atoms in the bond contribute one valence electron in order to form a shared pair.
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Convert
6.2 GL/s to m³/hr
Converting 6.2 GL/s to m^3/hr we get 84.94 m^3/hr , as an one Gallon per second is equals to 13.627 cubic meters per hour.
What is unit conversion and how to convert gallon per second to meters per hour?Unit conversion is so important when it comes to solve physics and chemistry numericals.Gallon per second to be converted into meters per cube per hour is equivalent to gallon per second to volume flow rate.Converting litre per second to m^3/ s is 1 m^3/s =1000L/s. Here the conversion is used to carry out equations.Earlier we have studied units and measurment in which 100 of units have found significance in the physical and cosmological world.To know more about gallon per second visit:
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To prepare a 4.20 M HCI solution that contains 655 g HCI, the volume of the solution must be___L
4.33 L of solution is needed to prepare a 4.20 M HCL solution that contains 655 g HCL.
What is M and how come the solution be 4.33 L?M is Molarity which is defined as the number of moles dissolved in per litre of the solution.Here it is given the molarity 4.20 and also given the mass of the Hydrochloric acid 655 g , to calculate the volume of the solution .We will use the equation n = m/molar mass first to calculate the number of mole of HCL.We are calculating the number of moles of HCL because only the mass of the HCL is given and moles not.Using equation M = number of moles/ litre of solution, putting the values, we get 4.33 L .To know more about Molarity visit:
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QUESTION A DORA 10 GUMS herease the conflicten: to 894, Look a die tolane Mateled "If" dor hydrogeny Why ae bee sow 3 hydrogen some on the robs site of the talance taco on the left side?Increase the coefficient for NH3. Look at the balance labeled "H" (for hydrogen). Why are there now 3 hydrogen atoms on the right side of the balance but 0 on the left side?
The balanced chemical reaction equation as we can see from the question on the left and right hand sides;
[tex]3H_{2} + N_{2} ------- > 2NH_{3}[/tex]
What is the balanced chemical reaction equation?Now we know that we use the chemical reaction equation to show the relationship between the reactants and the products in the system. We know that there is need to balance the chemical reaction equation so that we can be able to make sense of a given chemical reaction equation.
A chemical reaction equation is said to be balanced when the number of atoms of each of the elements on the reactant side is the same as the number of atoms of each of the elements on the products side. This could also be called the process of making an atom count to show the number of each of the atoms present in the system.
The principle stated above is used to obtain the balanced chemical reaction equation. If we apply it, we would then be able to obtain the equation as have been shown in the answer section above.
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