1 kg of NaOH solution contains 4 g of NaOH. The approximate concentration of the solution is :

Question

1 kg of NaOH solution contains 4 g of NaOH. The approximate concentration of the solution is : (A) about 0.1 N (B) decinormol (C) 0.1 molal (D) 0.1 molar

Tardigrade Admin · Accepted Answer

Molecular mass of NaOH =23+17=40 Hence, molality (m)=(4/40 × 0.996)=0.1

Q. $1 k g$ of $N a O H$ solution contains $4 g$ of $N a O H$ . The approximate concentration of the solution is :

about 0.1 N

decinormol

0.1 molal

0.1 molar

Molecular mass of $N a O H = 23 + 17 = 40$
Hence, molality $(m) = \frac{4}{40 \times 0.996} = 0.1$

Q. 1kg of NaOH solution contains 4g of NaOH. The approximate concentration of the solution is :