The final temperature of metal if 14.1327 J of heat energy is added is 289.57 K which is in relation with specific heat.
How is temperature related to specific heat calculated?Specific heat is calculated by the formula,
Q=mcΔT
In the given problem, Q=14.1327 J, m=10.2 g ,initial temperature=279.24 K
substituting these values in the given equation,
T₂=395.7979/1.3668= 289.57 K.
Specific heat is defined as the amount of heat required to raise the temperature of one gram of a substance by 1 degree Celsius. From specific heat formula, specific heat of any material its mass and gain and loss in temperature can be obtained.
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In the first reaction of the citric acid cycle, oxaloacetate, which contains blank______ carbons, is combined with acetyl-coa, which contains blank______ carbons in its acetyl group, to produce citric acid, which contains blank______ carbons.
Citric acid, which has 6 carbons, is created by combining oxaloacetate, which has 4 carbons, with acetyl-CoA, which has 2 carbons in its acetyl group.
What is citric acid cycle and how it works?Citric acid cycle also called as TCA cycle , which starts with the condensation of acetyl group with oxaloacetic acid( OAA).Citrate synthase is an enzyme which catalyses the initial reaction of TCA cycle .Then the third step is isomerization which isomerizes citrate to isocitrate.The oxaloacetate contains 4 carbon which is combined with acetyl-coa which contains 2C in its acetyl group to produce citric acid which contains 6 carbon.To know more about citric acid cycle visit:
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write a balanced chemical equation based on the following description: propanol, c₃h₇oh(l) burns in air to produce gaseous carbon dioxide and water vapor
The balanced chemical equation of combustion of propanol is 2 C₃H₇OH +9 O₂[tex]\rightarrow[/tex] 6 CO₂ +8 H₂O.
What is chemical equation?Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.
A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .
The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.
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if you want to use the quick transition dialog box to apply multiple dissolves to a series of cut point, how do you identify the cuts to which the dissolves will be applied?
Around the cuts you want the transition to appear on, add in and out points.
What does "transition dialog box" mean to you?You can build a transition from one state in the lifecycle to another state using the new Transition dialog box. You can additionally specify which roles are permitted to move the object through this transition by using this feature.
What does the scientific term dissolve mean?A solute in a gaseous, liquid, or solid phase can dissolve in a solvent to create a solution through the process of dissolution.
Solubility. The greatest concentration of a solute that may dissolve in a solvent at a specific temperature is known as solubility.
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polypropylene has a density of 0.90 g/cm3. explain why 4 different-sized cylinders made out of this material would not be able to be used in this experiment (following the exact procedure you did) to find the density of the material
Polypropylene is considered as safe for use. The chemicals found in plastic products are proven to contribute to some cancers.
What drawbacks does polypropylene have?Its usage in high temperature applications is constrained by its high thermal expansion coefficient.
Heavily resistant to both aromatic and chlorinated solvents. It is vulnerable to UV damage.
It is well known for being challenging to paint because of its low bonding capabilities.
It is highly flammable.
Which applications of polypropylene are common?Plastic containers, component parts for machinery and equipment, and even fibers and textiles are only a few applications for polypropylene.
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In an experiment, a solution required 30. 05 g of nacl, 50. 0 g of , and 0. 4006 g of mgso4. Using the correct number of significant figures, what is the resulting mass?.
Using significant figures and rounding up, the resulting mass is 80.5 g.
When using addition or subtraction, the total number of significant figures is relevant. Instead, the last significant figure of every number is considered.
In 30.05, the last significant figure is 5, and it is in the hundredths. In 50.0, the last significant figure is 0, and it is in the tenths. Finally, in 0.4006, the last significant figure is 6, and it is in the ten thousandths. Of the three, the 0 from 50.0 is in the "highest" position, and so the last significant figure of the results should also be in the tenths.
If we add the numbers up, we get:
30.05 g + 50.0 g + 0.4006 = 80.4506 g
Because the last significant figure should be in the tenths, we are going to round up 4 to 5, because trailing numbers are greater than 0, so the final mass will be 80.5 g.
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Explain the terms physical properties of metals Malleability and ductility, and how they used in daily life situation ?
Answer:
Malleability means that metals can be hammered into sheets and foils. For example, aluminium foils are used for wrapping food stuffs, silver foils are used for decorative purposes on sweets and fruits. Ductility means that metals can be drawn into wires. Gold and silver wires are used in ornaments.
and For jewellery and ornaments, gold, platinum and silver are being used. For building purposes, iron and steel can be used. Iron and aluminium are used as utensils. The thermometer uses mercury and helps to monitor the temperature.
Explanation:
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A lava flow high in silicon is likely to flow?
High silica content lava flow is thick and viscous and does not flow easily.
Though lava rises upwards toward the surface, it is too thick to pass through the Earth's fissures and crevices. Pressure is increasing as the lava continues to surge upward.
Which lava contains more silica?The least dangerous process involved in volcanic eruptions is lava flow. The temperature, silica content, extrusion rate, and slope of the terrain are all factors that affect how far a lava flow travels. A lava flow with a high silica content or one that is chilly will not move very far. Such a flow would be extremely viscous (a high resistance to flow). Low silica content is characteristic of basalt flows like those in Hawaii, OR long-distance flow, and low viscosities.
A MAGMA COMPOSITION AND TYPES OF ROCK
There are various varieties of magmas, ranging from mafic magmas, which have high Fe and Mg contents and relatively little silica, to felsic magmas, which have low Fe and Mg contents and relatively high silica.
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ytrdsxcvbhjiuytrfdcvbnjuytfvfdvhgytrdfcvnb.
Answer:
Explanation:
rtshyfjuyjdrghhhhhhhhhhhhhhhhhhhh
7. Students are asked to develop a plan for separating Al,0 (s) from a mixture of powdered Fe₂O3(s) and powdered Al20 (s) using chemical reactions and laboratory techniques. The student recovered 5.5 g of Al2O3 (s) from a 10.0 g sample of the mixture. Calculate the percent of Al by mass in the mixture of the two powdered oxides. (The molar mass of Al2O3 is 101.96g mol-¹, and the molar mass of Fez0, is 159.70 g mol-¹.)
The percent of aluminum (Al) by mass in the given mixture of the two powdered oxides is 29%.
What is the mass percent formula?The mass percent formula can be expressed by mass of the each element in one mole of the compound. The mass percentage of each component can be calculated as:
Mass percentage = (Mass of an element 1 mole of the compound)/ (molar mass of compound) × 100
Given, the mass of the mixture of the oxides Al₂O₃ and Fe₂O₃ is equal to 10.0 g.
The mass of the Al₂O₃ recovered = 5.5 g
The number of moles of Al₂O₃ = 5.5/101.96 = 0.054 mol
One mole of Al₂O₃ has two moles of aluminum.
0.054 mol Al₂O₃ will have moles of aluminum = 0.054 × 2 = 0.108
The molar mass of the aluminum (Al) = 26.98g/mol
The mass of 0.108 mol of Al = 0.108 × 26.98 = 2.9 g
The percentage by mass of Al in mixture = (2.9/10) × 100 = 29%
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Explain what happens to cloud mist as the number of "dry days” increases.
The cloud mist as the number of "dry days” increases and fewer precipitation events contributing to the annual total of cloud mist or the dry days has been increased.
What is the main procedure of formation of cyclones?The main procedure of formation of cyclones is that when hot moist air flows at the upper surface of the ocean it tries to move in upward direction due to which less amount of air is left at the surface of ocean and hence a lower air pressure is created in this area.
Surrounding air which is at higher air pressure try to push the low pressure air which rises the temperature of low pressure air and again this air moves upward leaving behind less air at the surface of the ocean.
When this high temperature and moist air moves in the upward direction it temperature decreases due to which clouds are formed . This combination of clouds and wind continuously grows and started spinning. When this combination of wind and clouds spin fast, that time an eye is formed at the center. At this center very low air pressure is there and air with high pressure flows down into this center.
Therefore, The cloud mist as the number of "dry days” increases and fewer precipitation events contributing to the annual total of cloud mist or the dry days has been increased.
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Which of these are elements?
Au, C, K, O
H₂O, CO₂, NaCl
Milk, Mud, Air
Answer:
Au, C, K, O
Explanation:
Au = Gold
C = Carbon
K = Potassium
O = Oxegen
H20 = Not an element on the periodic table
CO2 = Not an element on the periodic table
NaCl = Not an element on the periodic table
Milk = Not an element on the periodic table
Mud = Not an element on the periodic table
Air = Not an element on the periodic table
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Imagine that you have set up a genetic screen to identify e. Coli mutants that cannot metabolize the amino acid tryptophan for energy. Beginning with a master plate containing many colonies, you prepare replica plates on medium with glucose or tryptophan as the only energy source. You would look for colonies that _____.
Replica plates on medium with glucose or tryptophan as the only energy source. You would look for colonies that can grow only on the plates with glucose
How does the termination of transcription in E. coli relate to RNA hairpin turns?The turns, which separate the RNA transcript from the transcription bubble, are created by complementary base pairing. Genes that are constitutively expressed, or "housekeeping" genes, have the highest frequency of GbM, while genes with the most variable expression have the lowest frequency.
What transpires when an mRNA hairpin loop forms?During transcription, the mRNA strand develops a hairpin loop that separates the RNA polymerase from the DNA template strand. The sequences involved in this process are referred to as terminator sequences, and the process is known as rho-independent or intrinsic termination.
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vanadium forms four different oxides in which the percent by mass of vanadium is, respectively, (a) 76%, (b) 68%, (c) 61%, and (d) 56%. determine the formula and the name of each oxide.
A. The formula and the name of the oxide is VO, Vanadium(II) oxide
B. The formula and the name of the oxide is V₂O₃, Vanadium(III) oxide
C The formula and the name of the oxide is VO₂, Vanadium(IV) oxide
D. The formula and the name of the oxide is V₂O₅, Vanadium(V) oxide
How to determine the formula and the nameThe formula and the name of the various oxide can be obtained as follow:
A. Formula and name for oxide with 76% vanadium
V = 76%O = 100 - 76 = 24%Empirical formula =?Divide by their molar mass
V = 76 / 50.9 = 1.49
O = 24 / 16 = 1.5
Divide by the smallest
V = 1.49 / 1.49 = 1
O = 1.5 / 1.49 = 1
Thus, the empirical formula of the compound is VO and the name is Vanadium(II) oxide
B. Formula and name for oxide with 68% vanadium
V = 68%O = 100 - 68 = 32%Empirical formula =?Divide by their molar mass
V = 68 / 50.9 = 1.34
O = 32 / 16 = 2
Divide by the smallest
V = 1.34 / 1.34 = 1
O = 2 / 1.34 = 1.5
Multiply by 2 to express in whole number
V = 1 × 2 = 2
O = 1.5 × 2 = 3
Thus, the empirical formula of the compound is V₂O₃ and the name is Vanadium(III) oxide
C. Formula and name for oxide with 61% vanadium
V = 61%O = 100 - 61 = 39%Empirical formula =?Divide by their molar mass
V = 61 / 50.9 = 1.2
O = 39 / 16 = 2.4375
Divide by the smallest
V = 1.2 / 1.2 = 1
O = 2.4375 / 1.2 = 2
Thus, the empirical formula of the compound is VO₂ and the name is Vanadium(IV) oxide
D. Formula and name for oxide with 56% vanadium
V = 56%O = 100 - 56 = 44%Empirical formula =?Divide by their molar mass
V = 56 / 50.9 = 1.1
O = 44 / 16 = 2.75
Divide by the smallest
V = 1.1 / 1.1 = 1
O = 2.75 / 1.1 = 2.5
Multiply by 2 to express in whole number
V = 1 × 2 = 2
O = 2.5 × 2 = 5
Thus, the empirical formula of the compound is V₂O₅ and the name is Vanadium(V) oxide
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Electrons have a ___________ charge and are found in the area of an atom called _________ _____________.
Answer:
Electrons have a negative charge and are found in the area of an atom called Outer Shell
Electrons have a negative charge and are found in the area of an atom called electron shells.
A compound contains 19.3% Na, 26.9% S, and 53.8% O. its formula mass is 238g. what
The empirical formula of the compound, given it contains 19.3% Na, 26.9% S, and 53.8% O is NaSO₄
How to determine empirical formulaThe following paameters were obtained from the question:
Sodium (Na) = 19.3%Sulphur (S) = 26.9%Oxygen (O) = 53.8%Empirical formula =?The empirical formula of the compound can be obtained as follow:
Divide by their molar mass
Na = 19.3 / 23 = 0.839
S = 26.9 / 32 = 0.840
O = 53.8 / 16 = 3.3625
Divide by the smallest
Na = 0.839 / 0.839 = 1
S = 0.840 / 0.839 = 1
O = 3.3625 / 0.839 = 4
Thus, the empirical formula of the compound is NaSO₄
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Complete question:
A compound is 19.3% Na, 26.9% S, and 53.8% O. Its formula mass is 238 g/mol. What is the empirical formula? Show your work in a neat and logical manner.
A compound containing only c, h, and o, was extracted from the bark of the sassafras tree. the combustion of 72.3 mg produced 196 mg of co2 and 40.2 mg of h2o. the molar mass of the compound was 162 g/mol. determine its empirical and molecular formulas
The Empirical formula of the compound is C₅H₅O.
and molecular formula of the compound is C₁₀H₁₀O₂.
mass of C in the compound = (196g CO2)x (12.0 g C/44.0 g CO2) = 53.45g C
mass of H in compound = (40.2 g H2O) x (2.0 g H /18.0 g H2O) = 4.46 g H
mass of O in compound = 72.3 g total - 53.45 g C - 4.46 g H = 14.39 g O
now convert mass of each element to moles
53.45 g C x (1 mole C/12.0 g C) = 4.45 moles C
4.46 g H x (1 mole H/1.0 g H) = 4.46 moles H
14.39 O x (1 mole O/16.0 g O) = 0.899 moles O
Divide each by 0.899 to get C₅H₅O, which has a mass of 81 g
double that to get C₁₀H₁₀O₂ with mass of 162 g.
This is a "classic" example of a combustion analysis problem.
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A chargers particle is know as a
Answer:
A charged particle is called an ion.
A charged particle is called an ion.
Any atom or group of atoms that bears one or more positive charge is called cation and one or more negative charge is called anion.
Using the fictional periodic tale which of the following is the correct molar mass of H₂SO4
A
B
C
D
45.77 g
82.98 g
115.58 g
180.78 g
The mass of 6.022*10*23 atoms, molecules, or formula units make up one mole of a substance, which is known as the molar mass. This value is given in grams per mole.
The mass of a sample of a chemical compound divided by the quantity, or number of moles in the sample, measured in moles, is known as the molar mass of that compound. A substance's molar mass is a bulk characteristic rather than a molecular one.
Units: g/mol. Determine the atomic masses of each atom.Count the number of those atoms that are in the formula:The sum of all atomic masses. (Note: You must multiply it by the quantity of each atom in the formula if there are multiples of that atom.)Atomic masses:
Hydrogen - 1.01Sulphur - 32.06Oxygen - 16Number of atoms:
S - 1; O - 4; H - 2;
Molar mass = 32.06 + (1.01 * 2) + (16 * 4)
= 98.08 g/mol
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determine the average value of the translational kinetic energy of the molecules of an ideal gas at (a) 0.00 oc and (b) 100 oc. what is the translational kinetic energy per mole of an ideal gas at (c) 0.00 oc and (d) 100 oc?
If the volume of the gas is increased to 9.90 l (at constant temperature), then its pressure will be 373 mmg.
According to Boyle's law, if the temperature of a gas is constant then the volume and pressure of the gas can be in relation to each other at different times.
We are given:
The initial volume of the gas V1 = 4.90 L
The initial pressure P1 = 755 mmg
The final volume of the gas V2 = 9.90 L
The final pressure of the gas P2 = ?
Using Boyle's law equation we can find the final pressure.
The equation is
P1V1 = P2V2
P2 = P1V1/V2
P2 = 755 x 4.90 / 9.90
P2 = 373 mmg
Thus, the final pressure is 373 mmg. Hence we can conclude that as the pressure decreases then volume of gas increases.
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A 118.0 g sample of a compound contains 72.0 g of C. 18.0 g of H, and 28.0 g of N.
Which of the following is the empirical formula of the compound?
The empirical formula of a sample of a compound that contains 72.0 g of C. 18.0 g of H, and 28.0 g of N is C₃H₉N.
How to calculate empirical formula?Empirical formula is the notation indicating the ratios of the various elements present in a compound, without regard to the actual numbers.
The empirical formula of a compound can be calculated as follows:
C = 72.0g
H = 18.0g
N = 28.0g
Next, we divide by the atomic mass of each element as follows:
C = 72.0g ÷ 12 = 6molH = 18.0g ÷ 1 = 18 molN = 28.0g ÷ 14 = 2molNext, we divide by the smallest mole as follows:
C = 6mol ÷ 2 = 3H = 18 mol ÷ 2 = 9N = 2mol ÷ 2 = 1The empirical ratio is 3:9:1, hence, the empirical formula of the compound is C₃H₉N.
The options to the incomplete question are as follows:
CH₄NC₃H₉NC₄H₉N₂C₅H₅NLearn more empirical formula at: https://brainly.com/question/14044066
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364 Cal to kilowatt-hours
Express your answer using three significant figures.
Answer:
the answer is 0,000423
Explanation:
according to 3SF
Imagine that a researcher has developed a way to isolate thylakoids from chloroplasts and to make the ph of the thylakoid space acidic. If these isolated thylakoids are transferred to a ph8 solution in the dark, what might the researcher expect to observe?.
In the given condition where the thylakoids are isolated from the chloroplasts to make the pH of the thylakoid space acidic, the isolated thylakoid will form the ATP.
ATP is also referred to as Adenosine Triphosphate and is correctly called as the energy currency of the cell as it is responsible molecule for carrying the energy units in the cell. When the isolated thylakoids are made to transfer in the pH = 8 basic solution, then the acidic lumen of the chloroplast will be having a higher concentration of H⁺ ions. When they are placed in the basic solution then the H⁺ ions will move out because of the occurrence of concentration gradient which is higher in the lumen than the surrounding. The chloroplasts will now bear synthesis of ATP. Therefore, the isolated thylakoid is able to make ATP when the lumen is acidic, and the surroundings are made basic in nature.
Thus, the thylakoid which is isolated will bear the synthesis of ATP.
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here are three main types of chemical reactions: precipitation, acid-base and oxidation- reduction. classify each of the following as precipitation, acid-base or oxidation-reduction.
Precipitation is any liquid or frozen water that forms in the atmosphere and falls back to the Earth.
Acid–base reaction, a type of chemical process typified by the exchange of one or more hydrogen ions, H+, between species that may be neutral
An oxidation-reduction (redox) reaction is a type of chemical reaction that involves a transfer of electrons between two species.
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1. The process occurring in the mantle that is thought to be the force behind plate
tectonics is an example of a(n)
a. Plate Boundary
b. Divergent Boundary
c. Normal Fault
d. Convection Current
Answer:
D
Explanation:
The heating, rising, cooling, and sinking cycles are called convection currents. 2. A version of this same process, occurring in the mantle, is thought to be the force behind plate tectonics. ... Scientists suggest that differences in density cause the hot, plastic-like rock to be forced upward toward the surface.
How many moles of nitrate ions are there in 8.92 mol Ba(NO3)2?
Answer:
1 mole of Barium Nitrate has One mole of Barium ions, two moles of Nitrate ions
some scientists believe that life on earth began about 3.5 billion years ago. what do they base this belief on?
Because the oldest rocks with fossilized evidence of life on earth are at least 3.5 billion years old, life on earth must have started at least then.
How did life on Earth look like 3 billion years ago?According to a study, Earth may have been a "waterworld" without continents 3 billion years ago. Without any continents to divide the oceans, Earth may have been entirely submerged in water about 3 billion years ago, resembling a "waterworld." The 3.5 billion year old "stromatolites," which are hard structures made by microbes, also contain evidence of their presence. Stromatolites are produced when microbe-made sticky mats trap and organize sediments into layers. Even as the microbes disappear, minerals precipitate inside the layers, forming strong structures.
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How do plants recycle hydrogen during cellular respiration?(1 point) Responses The hydrogen in water is recycled as glucose. The hydrogen in water is recycled as glucose. The hydrogen in glucose is recycled as hydrogen gas. The hydrogen in glucose is recycled as hydrogen gas. The hydrogen in glucose is recycled as water. The hydrogen in glucose is recycled as water. The hydrogen in hydrogen gas is recycled as glucose. The hydrogen in hydrogen gas is recycled as glucose.
Plants recycle hydrogen during cellular respiration, as the hydrogen in glucose is recycled as water. The correct option is d.
What is cellular respiration?Food molecules are broken down into energy, water, and carbon dioxide during cellular respiration. In the presence of oxygen, cells respire. Multiple chemical cycles are involved in cell respiration.
In plants, cellular respiration occurs but in a minimum amount, and in this process the hydrogen in combines with oxygen and forms water.
Therefore, the correct option is d. The hydrogen in glucose is recycled as hydrogen gas.
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Answer: Plants recycle hydrogen during cellular respiration, as the hydrogen in glucose is recycled as water. The correct option is d.
Explanation: What is cellular respiration?
Food molecules are broken down into energy, water, and carbon dioxide during cellular respiration. In the presence of oxygen, cells respire. Multiple chemical cycles are involved in cell respiration.
In plants, cellular respiration occurs but in a minimum amount, and in this process the hydrogen in combines with oxygen and forms water.
Therefore, the correct option is d. The hydrogen in glucose is recycled as hydrogen gas.
how many moles Mg(OH)2 has in 0,05 kg from substance?
According to the data 0.855 moles Mg(OH)₂ has in 0.05 kg from substance.
How do you convert moles to mass?Add the number of moles to the substance's molecular weight. The molecular weight of a substance determines how many grams there are in a mole and provides a conversion factor from moles to grams for that specific substance. 1 mol H2O x 18.02 g/mol = 18.02 g, or 18.02 grams, is the mass of one mole of water.
Briefing:1 kg = 1000g
We can convert 0.05 kg to grams
0.05 * 1000 = 50 grams
Then Find moles of Mg(OH)₂
1 grams Mg(OH)₂ is equal to 0.0171 mole
Then 50 grams Mg(OH)₂ is :
50 * 0.0171 = 0.855 moles
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how does temperature differ from thermal energy
Base your answers to questions 1 and 2 on
the diagram below, which represents a solid material
of uniform composition.
2.0 cm
Density = 2.7 g/cm³
-3.0 cm-
A) 32 g
4.4 g
L
2.0 cm-
W₂
1. The mass of this piece of material is approximately
B 0.23 g
9.3 g
Answer:
A. 32 g
Explanation:
Density = 2.7 g/cm3
Volume = 2 x 2 x 3 = 12 cm3
Mass = dV = 2.7 x 12 = 32.4 g or 32 g