mole fraction

What is the mole fraction of NaOH in an aqueous solution that contains 22.8% NaOH by mass?

• 0.571

• 0.11

• 4.288

• 4.859

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

The sum of all mole fractions equal

• 1

• 0

• 2

• 0.1

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

• percent by mass