Question

How do you calculate moles of solute?

Answer 1

Number of moles of solute = mass of solute / molar mass of solute

mass is measured in grams and molar mass is measured in g `mol^-1`

molar mass is defined as the mass of one mole of a substance in grams.

A solution is prepared by dissolving 18 g of Glucose in 100 g of water. Calculate the number of moles of solute Glucose.

Molar mass of Glucose is 180 g`mol^-1`

Mass of Glucose is 18g

number of moles = mass of solute / molar mass of solute

number of moles = 18 g / 180g `mol^-1`

number of moles = 1/10 mol or 0.1 mol