Question

a 200ml.1M NaOH is diluted with enough water to make it 1 litre.Find its molarity

Answer 1

V1 = 200 ml
M1 = 1 M

V2 =1000 ml
M2 = ?

V1 M1 = V2 M2

200 (1) = 1000(M2)

200 = 1000(M2)

M2 = 200/1000

0.2 M
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After dilution the molarity of the solution will be 0.2M

Answer 2

Hey mate.......

here's ur answer.......

Values according to the question are.......

V = 200 ml. , V' = 1000 ml
M = 1M. , M' = ????

VM = V'M'
Let the unknown molarity be x

200 × 1 = 1000 × ?

200 = 1000x

x = 200/1000

x = 0.2 M

Hope it helps ☺️❤️