Question

20gm of NaoH is dissolved in 500cm^3 of water what is the molality of resulting solution​

Answer 1

Answer:

300gm........................

Answer 2

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We know that,

$molality \: = \: \frac{moles}{weight \: of \: solent(kg)} \\ \\ = > molality = \frac{weight}{molecular \: weight} \times \frac{100}{volume \times density} \\ \\ = > molality \: = \: \frac{20}{40} \times \frac{1000}{500 \times 1} \\ \\ = > molality \: = \: 1 \: m$

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