20. Determine the molar mass of NH3 and H2O. Then determine the number of moles of H2O in 6.01grams. Then determine the mass of NH3 needed to obtain the same number of moles of NH3 as H2O.

Q: Calculate mass percent of each element in perchoric acid, HCLO4 ?

A:

Q: Why is it important to be able to calculate an empirical formula from experimental data? A. A…

A: Empirical formula of a compound represents the smallest whole number relative ratio of elements in…

Q: Identify all correct statements pertaining to number of particles and moles. A. 6.023 x 1023 atoms…

A: Since there are multiple questions, we are authorized to answer only the first question, that is,…

Q: 1. What is the molar mass and molecular weight of KMNO4? 2. 10g of NaCl to moles. 3. 10g of NaCI to…

A: Molecular mass is the mass of one molecule and molar mass is the mass of 1 mole of molecules.  The…

Q: If you have 42.5 moles of glucose (C6H₁206) approximately how many grams do you have? #3

A:

Q: Suppose you have two samples that are equal in weight, 26.8g Ni and 26.8 g Al2 O3 Calculate the…

A: A chemical reaction is symbolic representation of the conversion of substances to new substances. In…

Q: 14. How many grams of H,O could be formed by the reaction of 16.0 g of CH, with 48.0 g of O,? CH, +…

A: The amount of water produced by combustion of methane is calculated as,

Q: A compound containing only carbon, hydrogen, and oxygen is analyzed using combustion analysis. When…

A: A compound containing only carbon, hydrogen, and oxygen is analyzed using combustion analysis.Amount…

Q: Use the following data and steps below to calculate the formula of the copper chloride hydrate.…

A: Given: Weight of empty aluminum pan      = 0.4661 g Weight of CuCl2. x H2O sample       = 0.8390 g…

Q: A compound has an approximate molar mass of 84.00 grams/mole and an empirical formula of CH2CH2.…

A:

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: An antifungal molecule has a molar mass of 2448 g/mol.  a. How many moles are there in a 1.567g…

A: The given weight of sample is 1.567 g. The given molar mass is 2448 g/mol.

Q: Diborane is produced when hydrogen gas reacts with boron as shown by the chemical equation below.…

A: The preparation of diborane is represented by the following relation: 2B+3H2→B2H6.

Q: a. Two compounds have the same composition: 92.25% C and 7.75% H. Obtain the empirical formula…

A: Empirical formula is the simplest formula of a compound where atoms of participating elements are…

Q: A sample of Water, H2O, has a mass of 55 grams. Determine the number of moles in the sample.

A:

Q: 10. When copper oxide reacts with hydrogen gas at high temperatures, copper metal and water vapor…

A:

Q: A compound contains 0.01492 moles of V and 0.03416 moles of Cl.  Calculate the ratio of moles of Cl…

A:

Q: Determine the number of sulfur present in each of the the following quantities. a. 3.01 x 10^23 S2O…

A: a) Given : Number of S2O molecules = 3.01 X 1023 molecules. Since each molecule of S2O contains 2 S…

Q: How many moles of nitrogen trifluoride are present in 7.02

A: 1 mol = Avogadro number no.of entities  Symbol NA  NA = 6.02 × 1023   No. of moles = Given no.of…

Q: Convert 32 grams of C₂H₅OH to moles.

A: The given mass of C2H5OH is 32 g. The molar mass of C, H, and O is 12.011 g/mol, 1.008 g/mol, and…

Q: A 0.2500 g sample of a compound known to contain carbon, hydrogen and oxygen undergoes complete…

A: Given, Mass of the sample of compound = 0.2500 g Compound contains carbon, hydrogen and oxygen.…

Q: 1.How many moles of O are in 11.2 molmol Fe(NO3)3? Express your answer in moles to three significant…

A:

Q: . Determine the moles of copper and oxygen in the copper oxide from the data 2. What is the…

A: The number of moles of a substance are given by the formula  moles = massmolar mass

Q: 452 ggon 1 mole 39.948 argon -11.31 moles argon

A: Unit conversion can be done by doing mathematical calculations with the unit conversion factor.

Q: Calculate the percent composition by mass of each element in Al(OH)3. Use at least three significant…

A: 1 mol of Al(OH)3 contains 1mol of Al, 3 mol of O and 3 mol of H atoms.  Molar mass of Al(OH)3 =…

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: Find the Mass of 3.65 x10² mole K,SO,?

A: Number of moles of K2SO4 = 3.65 × 10–2 mol  Molar mass of K2SO4 = 174.26 g/mol

Q: A chemist weighs 50.0 grams of solid NaOH. a) How many moles of NaOH are in the sample? [ Select ]…

A:

Q: Calculate the number of moles of water from mass of water loss: (molar mass of water= 18.0153 g/mol)…

A: The experiment data is given above.

Q: 150. g of carbon tetrachloride reacts with 100. g antimony (III) fluoride to produce…

A:

Q: Given : 1CH4 (g) + 2O2 (g) —> 1 CO2 (g) + 2 H2O (g) Q. calculate the mass of c02 gas formed when…

A:

Q: 16. A metal has the mass of 12.00 g and 5.850 x 1022 atoms. Calculate molar mass of the metal. O…

A:

Q: . How many moles of hydrogen sulfide (H2S 34.082 g/mol) are contained in a 35.0-g sample of this…

A:

Q: Convert the 123 g of CaF2 to moles.

A: Given information is as follows: The mass of CaF2 = 123 g The moles of a substance can be calculated…

Q: A researcher analyzed an unknown solid, extracted from the bark of spruce trees, to determine its…

A: a.  Mass of sample = 11.32 mg  = 0.01132 g       Mass of CO2       = 24.87 mg   = 0.02487 g…

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.