Question

You have 50 grams of glucose in a total volume of 250 ml, what is the % (w/v) of glucose in the solution?

Answer 1

Explanation:

Write the equation used to calculate the weight/volume (%) :

weight/volume (%) = (mass solute ÷ volume of solution) × 100

Identify the solute:

solute = sodium chloride = NaCl

Extract the data from the question:

mass solute (NaCl) = 5 g

volume of solution = 250 mL

Substitute the values into the equation and solve:

w/v (%) = (5g ÷ 250 mL) × 100 = 2g/100mL (%)