what is the percent by mass for each element in CaO?

Q: how many moles of propylene are in 2.5 g of the substance?

A: Given:given mass of propylene =2.5gwe know thatThe Molecular Formula of Propylene = C3H6 So,…

Q: Write the chemical formula for 1 mol of compound X containing 2 mol Al and 3 mol O.   X= ?

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Q: How many moles in 130g of Nitric Acid?

A:

Q: How many atoms are in 2.4 mol B?

A: Given : Moles of element B = 2.4

Q: How many molecules are in 59.6 moles of CCI,? 4.

A: Given:  Moles of CCl4 = 59.6 moles

Q: Calculate the percent by mass of each element in the following compounds. 1). Ag2S 2). NaHSO3 3).…

A: 1) The compound given is Ag2S. Assuming 1 mole of compound Ag2S. Molar mass of Ag2S = Atomic mass of…

Q: What is mass percent of hydrogen in nonane?

A: Nonane is a long chain aliphatic hydrocarbon compound which contains nine carbons. # From the…

Q: A 1.7500 g sample of a zinc compound ("ZnX") contains 0.8400 g of zinc. What is the molar mass of…

A: Given the mass of the unknown compound, ZnX = 1.7500 g Given the formula of the unknown compound is…

Q: Silver Chloride often used in silver plating contains 75.27% Ag calculate the mass of silver…

A: Concept introduction: Mass % is equal to the ratio of mass of given substance to total mass of…

Q: Calculate the percent composition by mass of each element in Al(OH),. Use at least three significant…

A: The compound given is Al(OH)3  Assuming 1 mole of Al(OH)3  Molar mass of Al(OH)3 = Atomic mass of Al…

Q: What is the percent by mass of hydrogen in sulfuric acid

A: Molar Mass of H = 1 g/mol Molar mass of H2SO4 = 98 g/mol

Q: Calculate the percent composition by mass of each element in LiClO,. % % Li = % Cl = %O =

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Q: How many moles are equal to 12.8 grams ofCaO2

A: Moles can be calculated as follows

Q: How many moles of sodium metal are needed to make 3.6 moles of sodium chloride?

A: Mole is an important measuring unit in chemistry. It is equivalent to the mass of a substance that…

Q: How many moles of MgSiO3 are in 231 g of the compound?

A: Generally the mass is converted into moles by using following expression.

Q: What amount in moles is 4.77x10^25 (to the power of 25) molecules?? 1.2.87x10^49 mol 2.79.2 mol…

A: Molecules = 4.77 x 1025

Q: How many moles are in 16.7 gg of allyl sulfide?

A: The chemical formula of allyl sulfide is (C3H5)2S. Molar mass of allyl sulfide = 2×{(3×12)+(5×1)} +…

Q: What is the percent by mass N in Magnesium Nitrate?

A: Atomic mass of N =  14 g mol-1 Molar mass of Magnesium Nitrate (Mg(NO3)2) = 148.3 g mol-1

Q: What is the Percent of composition of Ethylene glycol?   molar mass = 62.048

A: Ethylene  glycol- Ethylene glycol (IUPAC name: ethane-1,2-diol) is an organic compound with the…

Q: How many moles of ammonium ions are in 0.900 g of ammonium carbonate?

A: Grams of Ammonium carbonate = 0.900 g. Molar mass of Ammonium carbonate = 96.09g/mol.

Q: How many sulfite ions are contained in 99.6 mg of sodium sulfite?

A: Number of Mole- Ratio of given mass of substance to the molar mass of substance is called number of…

Q: c. Calculate the empirical formula from the given percent compositions. 82% nitrogen (N), 18%…

A: The empirical formula for a compound with 82% nitrogen (N) and 18% hydrogen (H) by mass is NH3.To…

Q: What is the molar mass of    sodium g/mol magnesium g/mol

A: given  name of elements Sodium and magnesium to find  molar mass sodium and magnesium.

Q: What is the percent oxygen in barium phosphate?

A: The first step is to identify the chemical formula of barium phosphate. The chemical formula of…

Q: How many formula units of calcium oxide are present in a 13.0 mole sample?

A: In chemistry, Avogadro's number, also known as Avogadro's constant, is the number of constituent…

Q: What is the percent composition by mass (to one decimal place) of Oxygen and hydrogen in 1 mol of…

A: The mass of 1 mol of atoms is called atomic mass For example :-  Atomic mass of H = 1.0 g/mol Atomic…

Q: How many moles of ammonium ions are in 0.417 g of ammonium carbonate?

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Q: How many molecules of NO are in a 22.5 g sample of the compound?

A:

Q: what is the mass of chloride contained in 18.7 g of NH₄Cl

A: Given data  Mass of NH₄Cl = 18.7 g Find mass of Cl

Q: What is the percent by mass of sulfur (%S) in copper(II) hydrogen sulfate?

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Q: chemist will use a sample of 30 g of ethanol (CH3CH2OH) in an experiment. In one to two sentences,…

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Q: 1. A 1.31g sample of sulfur was reacted with chlorine to form 4.22g of compound. What is the…

A: Given:Sulfur reacts with chlorine to form a compoundMass of sulfur = 1.31 gMass of compound = 4.22…

Q: What is the molar mass of manganese (IV) sulfite?

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Q: How many grams are in 2.50 moles of HCl?

A:

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".