Question

A compound X contains 11.5% of Sodium. What can be the minimum molar mass of the compound​

Answer 1

Answer:

Given :-

• A compound X contains 11.5 % of sodium.

To Find :-

• What can be the minimum molar mass of the compound.

Solution :-

Let,

$\mapsto$ The minimum molar of the compound X be 100 g.

As we know that,

$\clubsuit$ Mass of one sodium atom = 23 g

Given :

Sodium contains = 11.5 %

According to the question,

If, 11.5 % of sodium contains = 100 g

Then, 23 g of sodium will be :

$\implies \sf 23 \times \dfrac{100}{11.5}$

$\implies \sf 23 \times \dfrac{100 \times 10}{115}$

$\implies \sf {\cancel{23}} \times \dfrac{1000}{\cancel{115}}$

$\implies \sf 1 \times \dfrac{\cancel{1000}}{\cancel{5}}$

$\implies \sf {\cancel{1}} \times \dfrac{200}{\cancel{1}}$

$\implies \sf\bold{\red{200\: g}}$

$\therefore$ The minimum molar mass of the compound is 200 g .

Answer 2

Answer:

$\huge \sf\blue{\colorbox{pink}{Answer}}$

$\large\ 23 \times \frac{100}{11.5}$

$\large\ 23 \times \frac{100 \times10 }{115}$

$\large\ 23 \times \frac{1000}{115}$

$\large\ 1\times \frac{1000}{5}$

$\large\ 1\times \frac{200}{1}$

$\large\ = 200 \: g$