Question

Find out the volume of ammonia in 40cm³ of 0.35 moles dm cube solution.?

Answer 1

Question #48770, Chemistry, Inorganic Chemistry

Find out the volume of ammonia in $40\mathrm{cm}^3$ of 0.35 mol/dm³ solution.

Find out number of moles:

$$n(NH_3) = 0.35 \cdot 0.04 = 0.014\mathrm{mol}$$

Ammonia under standard conditions is a gas. One mol of any ideal gas (almost all gases can be considered like ideal ones under standard conditions) occupies $22.4\mathrm{dm}^3$. Therefore:

$$n(NH_3) = 0.014 \cdot 22.4 = 0.3136\mathrm{dm}^3$$

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