Question

If the solubility of NaCl in water is 22 gm % by weight at ${60}^{\circ }C$. Then how many grams of NaCl can be dissolved in 82 gm of water.

• A. 19.08 gm
• B. 16.04 gm
• C. 18.04 gm
• D. 14.08 gm

Answer 1

The correct option is C

18.04 gm

The solubility of NaCl is 22 gm % by weight i.e 100 gm of water can dissolve 22 gm of NaCl.

Therefore, 82 gm of water can dissolve $\frac{22\times 82}{100}$ ​

= 18.04 gm