Chemistry, asked by Ananyasingh2374, 1 year ago

Calculate the molarity of 20% solution of KOH by mass whose density is 1.02g/ml.

Answers

Answered by parasarora77
16
We know that
M = [(m/M)% × d × 10]/GMM

where(m/M)% = mass by mass % = 20% (given)
d = density =1.02g/ml
GMM = gram molar mass of KOH = 56g
M = Molarity

Put the values in formula

M = (20 × 1.02 ×10)/56
M = 4M You know that unit of Molarity is M.

Hope I am correct
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Please tell me whether you know the above formula or not
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