Question

For this experiment you want to prepare a 0.10 m solution of sodium hydroxide. how many grams of sodium hydroxide must be added to give you 500.0 ml of that solution? question 1 options:

Answer 1

c×v
n (NaOH) = ------
1000

0.1 × 500
n (NaOH) = ----------------
1000
n (NaOH) = 0.05 moles

Mass= Mr(NaOH) × moles
Mass= (23+16+1) × 0.05
Mass=2.15 g (2.15 grams)