Question

How many grams of NaOH are needed to prepare 250 mL of 0.205 M NaOH?

Answer 1

Hi,,

Molar Conc = moles ÷ Volume

So, no of moles =

M×V= 0.205 × 0.250= 0.05 mol

Mass of NaOH = no of moles × MWT

= 0.05 ÷ 40 = 2gms

Hope the answer is helpful