Question

calculate the molarity of NaOH in the solution prepared by dissolving it's 4g in enough water to form 250ml of the solution

Answer 1

molarity = gm/litre
so 4/0.25
16M

Answer 2

HEYA MATE HERE U GO.

WNaOH = 4gm

v= 250ml

GMW= 40

M= ?

M= w/GMW × 1000/V(ml) = = 4/40 × 1000/250 = 0.4M.