3. If the molecular formula for a compound is C5H10, what is its empirical formula? * CH2 4. What is the percent composition of carbon in carbon dioxide? * 50% 27% 73% 100% 5. What is the percent composition of aluminum in aluminum oxide? 50% 53% 47% 63%

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Q: How many molecules are in 156 g of aluminum sulfate? 1. 2. What is the mass of 5.36 x 102² molecules…

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Q: As of 2018, ~95% of hydrogen is produced from fossil fuels. One of the most important reactions of…

A: Consider the given reaction is as follows; CH4 g   +   H2Og    →    COg   +    3 H2 g Given…

Q: An unknown compound contains only CC , HH , and OO . Combustion of 2.90 g2.90 g of this compound…

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Q: The amino acid arginine has an approximate molar mass of 174 g/mole. If the percent composition is…

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Q: Psoralen, a compound found in giant hogweed, contains only C, H, and O. Combustion of 1.000 g of…

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Q: 3. 29.0g Ag combine completely with 4.30g S to form a compound. What is the percent composition of…

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Q: The mineral chalcocite, Cu2S, has been mined for centuries and is one of the most profitable copper…

A: Answer: This question is based on stochiometric calculation where moles of copper needs to be…

Q: The Haber-Bosch process involves the combination of nitrogen and hydrogen at high temperatures in…

A: Answer:Reagent that exhuast first in the chemical reaction and decides the yield of product is…

Q: Mass of Zn 2.44 g Mass of Cu 0.063 g The mass of Zn and the mass of Cu in a coin are given in the…

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Q: Methyl tertiary butyl ether, or MTBE, is currently used as an octane booster in gasoline. It has…

A: Answer:- This question is answered by using the simple concept of calculation pecentage composition…

Q: A major component of gasoline is octane (C8H18). When octane is burned in air, it chemically reacts…

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Q: Molly Cule weighed 8.61g of her hydrate (which is CaSO4*2H2O). After she did her hydrates lab, she…

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Q: A major component of gasoline is octane. When octane is burned in air, it chemically reacts with…

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Q: A reaction between nitrogen and hydrogen forms ammonia (NH3). If 15.62 grams of nitrogen is reacted…

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Q: The analysis of a compound gives the following percent composition by mass: C: 56.70 percent; H:…

A: The molecular formula C13H23S1O4 is calculated from percentage composition and molar mass of…

Q: Regular treatment with low dose aspirin is used to help prevent cardiovascular disease. How many…

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Q: A definiency in thhe vitamin nicotinamide results in the dietary deficiency disease pellagra,…

A: Given, the molecular formula for nicotinamide is C6N2H6O. We have to find the percent composition by…

Q: In 0.4 ure in 2.9 mol of

A: Firstly Calculate the moles of Br atom in CHBr3  moles of Br atom = 3 • ( moles of CHBr3 )  Moles of…

Q: Vitamin C, an antioxidant present in citrus fruits, contains only C, H, and O. Combustion of 10.0 g…

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Q: A major component of gasoline is octane  C8H18 . When octane is burned in air, it chemically reacts…

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Q: What is the mass, in grams, of 9.32×1024 molecules9.32×1024 molecules of methanol (CH3OH)?

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Q: If atoms of magenesium (Mg) and atoms of 10 chlorine (Cl) could bump into each other, could they…

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Q: Assuming complete reaction, how many moles of HCl(g) can be produced from 0.100 mol of Cl2(g)?

A: H2(g) + Cl2(g) ----> 2HCl(g)  given :- 0.100 mol Cl2(g)  To calculate :- number of moles of…

Q: What is the mass, in grams, of 9.35×1024 molecules9.35×1024 molecules of methanol (CH3OH)?

A: Given information: molecules of methanol (CH3OH) = 9.35×1024

Q: the mass, in grams,

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Q: 2 NH3 + 3 CuO --> 3 Cu + N₂ + 3H₂O In the above equation how many moles of N₂ can be made when 190.1…

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Q: 4. When propane (C3H3) undergoes complete combustion in oxygen, it produces carbon dioxide and…

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Q: 1- Determine the mass of 6.46 mol of Pb, H₂SO4? 2- Determine the moles in 125.0 grams of nickel,…

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Q: Combustion of 31.98 g of a compound containing only carbon, hydrogen, and oxygen produces 62.47 g…

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Q: 2 NH3 + 3 CuO --> 3 Cu + N₂ + 3H₂O In the above equation how many moles of N₂ can be made when 170.6…

A: Given equation,  2 NH3 + 3 CuO → 3 Cu + N2 + 3 H2O Molar mass of N2 = 14+14 = 28 g.mol-1 Molar mass…

Q: What is the mass, in grams, of 1.67 x 10^15atoms of Mn

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Q: How many molecules are in 119.78 g of butane (C4H10)?

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Q: The composition of a compound was found to be 66.7% C, 25.9% N and 7.41% H by mass? What is the…

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.