Question

Calculate the amount of water required to prepare 5% of caustic soda solution
Select an answer
A) 475g
B) 100g
C) 95g
D) 97.5g

Answer 1

Normally, solution percentages are defined as weight(solute)/weight(solution) or weight(solute)/volume(solution).

So 60% NaOH solution should be 60g NaOH and 40g H20 (if w/w) or filling up 60g NaOH with water until you reach a total volume of 100mL (if w/v).

please mark me brain mark list