20. How many molecules are contained in each of the following: (a) 1.75 mol Cl, (b) 0.27 molC,H,0 (c) 12.0 g CO, (d) 1000. g CH,

Q: 3) What is the mole of 6.022 x 10 molecules of CO, ? A) 2 B) 3 C) 1 4) What is the molar mass of CO,…

A: 3) In this question we want to determine the moles of CO2  We know that,  moles of CO2 = ( molecules…

Q: 3.109 How many moles of O are needed to combine with0.212 mol of C to form (a) CO and (b) CO2?

A:

Q: What mass of Cu(IO3), can be formed from o. 500 g of CUSO4 5H,O?

A:

Q: What number of molecules (or formula units) are present in 2.93 g of each of the following…

A:

Q: a. What mass is represented by 0.0146 mol of C3H7OH (2-propanol, rubbing alcohol)? Mass %3D b. What…

A: a). Given: The moles of C3H7OH = 0.0146 mol. The molar mass of C3H7OH = 60.09 g/mol.

Q: How many atoms are contained in in 3.62 mol O2 ?

A: It is known that 1 mole of a substance is equal to 6.022×1023 atoms. The given molecule is O2. In…

Q: How many H atoms are present in 7.52 g of propane, C3H8?

A: The given data contains, mass of propane = 7.52 g.

Q: An organic compound has an empirical formula CH2 and a molar mass of 112.21 g/mol. How many H atoms…

A: an empirical formula CH2  empirical mass = (12 x 1 ) + (1 x 2)= 14  n = molar mass / empirical mass…

Q: 2.3 (a) How many grams are there in one amu of a material? (b) Mole, in the context of this book, is…

A: A.M.U is defined as mass of One atom.

Q: A chemist requires 0.737 mol Na,CO, for a reaction. How many grams does this correspond to?

A: grams= moles x atomic weight

Q: A: What is the correct chemical formula when Co4+ combines with S2- ?  B:  How many ATOMS of OXYGEN…

A: A: What is the correct chemical formula when Co4+ combines with S2-?

Q: Cortisone consists of molecules, each of which contains 21 atoms of carbon (plus other atoms). The…

A: The given data: The number of carbon atoms present in cortisone = 21 The mass % of the carbon in…

Q: Table salt, NaCl(s), and sugar, C1,H„O(s), are accidentally mixed. A 5.50 g sample is burned, and…

A: Balanced chemical equation for combustion of sucrose: C12H22O11 + 12O2 ------> 12CO2 + 11 H2O…

Q: What is the mass of O in a sample of 70.09g of CO2?

A: Two or more elements are combined to form a chemical compound. Here C and O combine to form CO2…

Q: Explain what the subscript in the formula for a compound indicates. Explain what the coefficient in…

A: Since you have posted multiple short questions, as per our company guidelines we are supposed to…

Q: Describe how molecular formulas and structural formulas areused to represent the compositions of…

A: Molecular formulas and structural formulas are used to represent the compositions of molecules that…

Q: A 52kg woman has 7.2 × 10⁻³ mol of hemoglobin (molar mass = 64456g/mol) in her blood. What quantity…

A: If the number of moles is known, Avogadro's number 6.022 x 1023 molecules, may be applied to compute…

Q: Calculate the number of atoms of glucose in 2.116 x 10-3 grams of glucose, C6H12O6. Hint: molar mass…

A:

Q: How many molecules are contained in a 325-mg tablet of aspirin (C 9H 8O 4, molar mass 180.2 g/mol)?

A: Aspirin is an antipyretic and anti-inflammatory drug and is widely used as an antiplatelet agent. It…

Q: What is the molecular formula of the molecule that has an empirical formula of CH and a molar mass…

A: Given , Empirical formula = CH Molar mass = 78.0 g/mol

Q: What number of molecules (or formula units) are present in 1.80 g of each of the following…

A: Please find your solution below : Avogadro's number is the number of atoms, molecules, ions, formula…

Q: balance this chemical reaction            ____C6H12O6   →      ____   C3H6O3

A: Given reaction is, ____C6H12O6   →      ____   C3H6O3

Q: millan Lea Table salt, NaCI(s), and sugar, C,H„0,(s), are accidentally mixed. A 5.00 g sample is…

A: Sample taken = 5.00 g  CO2 produced = 1.60 g

Q: The empirical formula for a compound is CH2O, and the molar mass is 180.2 g/mol. Which is the…

A: The empirical formula of compound  = CH2O The molar mass of Molecule = 180.2 g/mol   To get the…

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

A:

Q: A flask contains 0.490 mol of liquid bromine, Br2Br2. Determine the number of bromine molecules…

A:

Q: How many atoms in 4.93  mol O2?

A: One molecule of O2 contains two oxygen atoms. According to the Avogadro concept, we know that one…

Q: balance this chemical reaction        ____  C6H11NO3S →       ____  C3H5OS +       _____  C3H6NO2

A: The balanced equation is shown below.

Q: 3.01 x 1023 molecules of sucrose is _ _ _ _ _ _ _ _ _ _ _ _ _ moles of sucrose.  Why don’t you need…

A: Given : Number of molecules of sucrose = 3.01 X 1023 molecules.

Q: What mass in grams of TNT can be made from 598 g C7H8?

A:

Q: 5. a) How many moles is 12.04 x 10 molecules of CaCO,? b) What is the mass of this many moles?

A: Since we know that   1 mole of any substance = 6.022 × 1023 molecules of that substance. And  Number…

Q: How many molecules are present in 4.61×10^2 mol of O2?

A: Given data, Number of mol of O2 = 4.61 × 102 Calculating the molecules present. Therefore, The…

Q: Question attached

A: Mass percentage It is the ratio of mass of an atom to the total mass of the compond. mass…

Q: How many molecules of C,H,, are present in 385.42g of C,H,? 10 If you have 7.24 x 10 molecules of…

A:

Q: A sample is found to contain 66.8 % NaHCO, by mass. What is the mass of NaHCO, in 4.25 g of the…

A: Mass by mass percentage (w/w) When mass of solute in a solution is expressed in grams of solute in…

Q: 4. What is the mass percent composition? Why is it useful?

A: Mass percent of each type of element in a compound is called the mass percent composition of the…

Q: A mixture of gases has the following composition by mass: O2 CO 16% (Xo, = 0.16 g O,/g total) 4.0%…

A: We have to find molar composition of gases

Q: A student, Ken, is given a mixture containing two carbonate compounds. The mixture includes MgCO,…

A: Given: Percent by mass of CO32- ions in sample = 69.14 %

Q: If 0.164 moles of a substance weighs 32.5 g, what is the molar mass of the substance, in units of…

A: 1 mole of a substance means 6.022x1023  number of that substance.

Q: What mass of compound is present in 5.80 moles of each of the following compounds? H. ON a. Mass b.…

A:

Q: A 52-kg woman has 7.2 x 10 mol of hemoglobin (molar mass = 64456 g/mol ) in her blood. How many…

A: We know that 1 mole of any substance contains Avogadro number of molecules i.e 6.022 ×1023…

Q: An organic compound has a molar mass of 171.1 g/mol and contains 11.10 % hydrogen atoms by mass. How…

A:

Q: The molecule Al(OH), has Al atom(s), O atom(s) and v H atom(s). Therefor, the molar mass of Al(OH),…

A: Molar mass is the mass of a chemical element divided by the amount of substance (mol). It can be…

Q: Q6 - Calculate the formula weight of the following molecules to three significant figures Q7…

A:

Q: What number of molecules (or formula units) are present in 3.07 g of each of the following…

A: Given,  Mass of each compound = 3.07 g  Then,  Find number of molecules in = ?  a). NH3  b). N2H4…

Q: A 52-kg woman han 7.2 x 10"mol of hemoglobin (molar mass - 64456 glmol)in her blood. How many…

A: No. of mol of hemoglobin = 7.2×10-3 mol Molar mass of 1 mol of hemoglobin = 644.56 g/mol 1 mol of…

Q: How many particles of glucose are present in 0.53 moles of C,H,2O6? (what kind of particles are…

A:

Q: 25.If 0.274 moles of a substance weighs 62.5 g, what is the molar mass of the substance, in units of…

A: Given data Moles of substance = 0.274 mol weight of substance = 62.5 g find out the molar mass of…

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.