a. How many grams of P are present in 2.18 grams of phosphorus trichloride? Mass= gP b. How many grams of phosphorus trichloride contain 3.07 grams of Cl? Mass= g phosphorus trichloride

Q: A sample of limestone and other soil materials was heated, and the limestone decomposed to give…

A: Given -> CaCO3(s) -----> CaO(s) + CO2(g)  Weight of sample = 2.237 gm  Weight of CO2 formed =…

Q: A model of the butanal molecule is shown in the window below. ball & stick + labels ited a. How many…

A: From the model, Butanal=> CH3>CH2CH2CHOMolecular formula of butanal is C4H8O. Mole is the SI…

Q: A particular ore of lead, galena, is 10.0% lead sulfide, PbS, and 90.0% impurities by weight. What…

A: we  need to calculate mass of Pb in the ore

Q: 1. Which statement best describes molar mass? a. the mass of 6.02 x 1023 atoms, which is constant…

A: The molar mass of a compound is described by the moles concept. According to this concept, one molec…

Q: Consider a compound that produces 5.0 g Al and 19.7 g Cl a. What is the empirical formula of this…

A: Given that : Mass of Al = 5.0 g Mass of Cl = 19.7 g The molar mass of Al is 26.98 g/mol. The molar…

Q: 4.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: Given that, 4.0 g of a compound X is made of carbon, hydrogen and perhaps oxygen. The molecular…

Q: a. How many ATOMS of boron are present in 7.41 grams of boron trichloride? 3.805x10^21 atoms of…

A: Molecule given = BCl3 1 molecule of BCl3 = 1×6.022 ×1023 Molar mass of BCl3 = 117.3 g/mol 117.3 g of…

Q: 1. Methanol can be produced  by the reaction between carbon monoxide and hydrogen. Suppose 68.5 kg…

A: Answer: This question is based on stoichiometry of the reaction where compounds always react in the…

Q: You wish to prepare 217 grams of 19.7 % MnCl2. You will need_________________  grams of…

A: Mass of mgcl2= 42.74gm Voulme of H2O= 80.3ml

Q: 5. Aspartame is an artificial sweetener that is 160 times sweeter than sucrose (table sugar) when…

A: Molecular formula is C14 H18 N2 O5  We need to find it's molar mass.  Amount of molecules in 10.0 g…

Q: a. Calculate the percent by mass of each element in HC103. % H = % C1 = % 0 = b. Calculate the…

A:

Q: If we wanted to produce 0.95 mol of carbon dioxide gas (CO2), how many moles of oxygen (O2) gas…

A: Given, moles of CO2(produced)=0.95 mol

Q: D. Calculate the mass (g) of the following samples. 25) 238 moles of lead 26) 1.54 x 10° moles of Zn…

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: 1. What is the molar mass of sodium phosphate, Na3PO4(aq)? a. 69.95 g/mol b. 99.04 g/mol c. 117.96…

A: AS PER THE ANSWERING GUIDELINES I CAN ANSWER ONLY THE FIRST ONE, IF YOU WANT THE REST POST THEM…

Q: A 2.37 g sample of nitrous oxide (an anesthetic sometimes called laughing gas) contains 3.24 x 1044…

A: Given data,  Mass of nitrous oxide = 2.37 g  Contains 3.24 × 1022 N2O molecules

Q: Which statement best describes molar mass? a. the mass of 6.02 x 10²3 atoms, which is constant for…

A: The molar mass of a compound is described by the moles concept. According to this concept, one mole…

Q: a. What isthe percent by mass of water in iron (II) sulfate heptahydrate, FeSO4 • 7H2O  (or what…

A:

Q: Sucrose has the molecular formula C12H22011. If a sucrose sample contains 9.0 x 1024 atoms of…

A: Given, Sucrose has the molecular formula: C12H22O11 A sucrose sample contains, Number of atoms of…

Q: 9. How many sodium ions are contained in 1.64 g of Na3PO4? The molar mass of Na₂SO3 is 163.94 g/mol.…

A:

Q: The semi-precious stone turquoise is a hydrate and with the chemical formula CuAl₆(PO₄)₄(OH)₈･4 H₂O.…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: 6. Calculate the mass of 4.50 moles of CazPO4 . O 968 g O 215 g O 0.0209 g O 87.1 g 7. The molecular…

A:

Q: An unknown compound comprised of osmium and chlorine is 40.11% osmium by mass. a. If you assume…

A: Hello. Since the question contains more than three sub-parts, the first three sub-parts shall be…

Q: Given: NaBr + Sn(NO3)2 --> NaNO3 + SnBr2 a. When this equation is balanced, what is the sum of the…

A: NaBr + Sn(NO3)2 --> NaNO3 + SnBr2 To get the Balanced chemical equation , we have to add the…

Q: A mixture of carbon and sulfur has a mass of 9.0 g. Complete combustion with excess O2 gives 23.3 g…

A:

Q: iron (II) phosphate Ca3(PO)2->Fe,N +COCNJ2+FePo4 1. How many grams of calcium phosphate must be used…

A: The stepwise solution is as follows -

Q: a. A 9.475 gram sample of copper is heated in the presence of excess chlorine. A metal chloride is…

A: Given question related to calculating empirical formula of metal halide formed when metal is heated…

Q: a. How many ATOMS of boron are present in 5.24 grams of boron trifluoride? atoms of boron. b. How…

A: Since, Moles is the ratio of mass to the molar mass of that atom or molecules. Also, Number of atoms…

Q: Oxygen makes up 46.7% by mass of the earth's crust. How any grams of oxygen are present if a sample…

A:

Q: A cylinder of nitrogen gas (N2) weighs 550 grams. How many moles of nitrogen are present in the…

A: Molar mass of N2 = 28.0 g/ mol

Q: the formula for disulfiram decafluoride is S2F10   A.How many molecules are in 1.35 grams of…

A: A.

Q: Analysis by mass of a certain compound shows that it contains 14 percent hydrogen and 86 percent…

A: The objective of the question is to determine the most informative statement that can be made about…

Q: The mass, in grams, of 1.5 x 10-2 mol of CdS. The number of moles of hydrogen in 86.6 grams of…

A:

Q: Calculate the number of atoms in a 8.20 x 10³ g sample of sulfur. number of atoms: A reaction…

A:

Q: The formula for sulfur hexafluoride is . a. How many molecules are in 2.24 grams of sulfur…

A:

Q: Calculate the mass, in grams, of 322 atoms of iron, Fe (1 mol of Fe has a mass of 55.85 g).

A:

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

A:

Q: What is the mass, in grams, of 6.5 x 10-3 moles of ammonium phosphate? 1.35 g 0.97 g 0.85 g 0.73 g

A: Concept:  Moles and molar mass can be used to predict the mass of the sample. Moles is unit to have…

Q: A cereal contains 11.0 grams of sucrose (C₁₂H₂₂O₁₁) per 60.0 grams of cereal…

A: The objective of the question is to find out the mass of cereal that must be consumed to intake a…

Q: 1. Calculate the number of moles of chlorine in 2.34 x 1019 molecules of chlorine.

A: The question is based on mole concept. we have to calculate number of moles in given molecules of…

Q: A researcher exposes 11.89 g of pure iron to a stream of oxygen gas until it reacts to produce16.99…

A:

Q: Part A. What is the mass of 9.50 moles of magnesium chloride, MgCl2? Express your answer with…

A: Part A: Calculation of mass of MgCl2 : The number of moles of MgCl2 = 9.50 moles The mass of a…

Q: . Suppose a sample is 32 mL of water, how many grams of oxygen is present in the sample? 2. How…

A:

Q: 2. A mixture weighing 1.250 grams is 20.0% sodium nitrate, 56.0% silicon dioxide, and the rest is…

A:

Q: The reaction between aluminum and chlorine gives aluminum chloride in 87.3% yield. a.write the…

A:

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.