Calculate the concentration of (NaOH) solution in g/ml. whic... | Chemistry | SolveeIt

Question

Calculate the concentration of $NaOH$ solution in g/ml. which has the same normality as that of a solution of $HCl$ of concentration $0.04 \,g/ml$

$0.0215\, g/ml$

$0.032 \,g/ml$

$0.48\, g/ml$

$0.0438 \,g/ml$

Answer

$0.0438 \,g/ml$

Explanation

Solution

$N=n \times M$ $M=\frac{no.of. moles}{Vol. in \left(L\right)}=\frac{\frac{0.04}{36}}{10^{-3}}$ $=\frac{1.1\times10^{-3}}{10^{-3}}=1.1$ $N=1\times1.1=1.1\,N$ M of NaoH $=\frac{\frac{x}{40}}{10^{-3}}$ where x is wt. o f NaOH in g. $1.1\times10^{-3}=\frac{x}{40}$ $x=4.4\times10^{-2}$ $=0.044 \,g/ ml$

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