Question

34g of NH3 is dissolved in 100g of solution. Calculate molarity of solution if density of solution is 0.85 g per cm^3.
Molar mass of NH3=17 g mol^-1​

Answer 1

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Answer 2

Molarity of solution = 17 mol/L

Explanation:

mol NH₃=$34 \times \frac{1}{17}$ = 2 mol NH₃

$volume =\frac{mass}{density}$

           $=\frac{100}{0.85}$

           =117.65 ×10⁻3 L

$Molarity=\frac{2}{117.65\times 10^{-3}}$ =17 mol/L