Question

The vapour density of a volatile chloride of a metal is 59.5 and the equivalent mass of the metal is 24. The atomic mass of the metal will be:

• A. $96$
• B. $48$
• C. $24$
• D. $12$

Answer 1

Answer: (B)

$48$

Vapour Density of chloride of a metal $=59.5$

Equivalent Mass of a metal $=24$

According to formula,

Molar mass of chloride$=2\times VapourDensity$

$=2\times 59.5$

$=119$

Equivalent Mass$=\frac{MolarMass}{n-factor}$

$\Rightarrow 24=\frac{x}{n}$

$35.5n+x=2\times 59.5$

$35.5n+24n=119$

$\Rightarrow x=2$

Molar mass of element $=48g/mol$