Chemistry, asked by pikachu973, 1 month ago

what is the weight of naoh present in 20cc of a 2 molar solution​

Answers

Answered by anshramteke07
0
Given : molarity of the solution = 0.2 m

0.2 moles of NaOH are present per liter of the solution.

So no. Of moles of NaOH in 500ml of the solution is : 0.2 x 500ml = 0.2 x 1 = 0.1 m
1 L. 2

Molar mass of NaOH = molar mass of ( NaOH + O + H ) = 23 + 16 + 1 = 40g

So mass of 0.1 mole NaOH = 40 x 0.1 = 4g
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