Question #55516

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Question #55516

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Answer 1 · 2017-08-08T13:43:07

0.4 M

Explanation:

$Molarity = \frac{Weight of solute}{Gram molecular weight of solute} \times \frac{1000}{Volume of solution in ml}$ $text(Molarity) = text(Weight of solute)/text(Gram molecular weight of solute) xx 1000 / (text(Volume of solution in ml))$

$Molarity = \frac{Weight of NaOH}{Gram molecular weight of NaOH} \times \frac{1000}{Volume of solution in ml}$ $text(Molarity) = text(Weight of NaOH)/text(Gram molecular weight of NaOH) xx 1000 / (text(Volume of solution in ml))$

$Molarity = \frac{4}{40} \times \frac{1000}{250}$ $text(Molarity) = 4/40 xx 1000/(250)$

$Molarity = 0.4 M$ $text(Molarity) = 0.4 text(M)$

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Question #55516

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