Calculate the grams of NaOH present in 9.0 mL of a 8.0% (m/v) NaOH solution.

Answer 1

8.0 % m/v NaOH means 8 grams NaOH in 100 mL of solution. So the amount in 9.0 mL will be
8.0 x (9.0 mL/100 mL) = ?