Mole Fraction

the number of moles of solute or solvent in a solution divided by the total number of moles of solute and solvent is known as

• molarity

• mole fraction

• molality

• parts per million

Suppose a hydrochloric acid solution contains 36 g of HCl and 64 g of H₂O.what is the mole fraction of HCl?

• 0.78

• 0.99

• 0.22

• 3.6

Determine the mole fraction of SOLUTE in a solution with 2 moles of acetic acid (C2H4O2 / vinegar) and 2 moles of water.

• .5

• .25

• 1

• .2

Calculate the mole fraction of benzene (C6H6) in a solution of 46.8 g benzene and 36.8 g of toluene (C7H8).

• 0.4

• 0.6

• 0.7

• 0.5

What is the mole fraction of MgF₂ in a solution  that has 0.321 mol of MgF₂ dissolved in 4.44 mol of water?

• 0.0674

• 0.0722

• 1.425

Determine the mole fraction of SOLUTE in a solution with 2 moles of acetic acid C₂H₄O₂ and 2 moles of water.

• .5

• .25

• 1

• .2

What is the mole fraction of 29.22 g of NaCl (58.44 g/mol) in 36.04 g of H₂O (18.02 g/mol)?

• 0.8108

• 0.4477

• 0.2000

• 0.2500

Calculate the mole fraction of toluene in a solution of 46.8 g benzene (C₆H₆) and 36.8 g of toluene (C₇H₈).

• 0.404

• 0.596

• 0.712

• 0.312

It is the number of molecules (or moles) of one component divided by total the number of molecules (or moles) in the mixture

• a. molality

• b. molarity

• c. normality

• d. mole fraction

The number of moles of solute or solvent in a solution divided by the total number of moles of solute and solvent is known as

• molarity

• mole fraction

• molality

• parts per million