Question

Cost of sugar $\left(C_{12}{H}_{22}{O}_{11}\right)$ is Rs.50 per kg. Calculate its cost per mol.

• A. Rs. 17.1 per mol
• B. Rs. 27.1 per mol
• C. Rs. 14.1 per mol
• D. None of the above

Answer 1

Answer: (A)

Rs. 17.1 per mol

Molar mass of sugar $=12\times 12+1\times 22+11\times 16$
$=342g$

$\because$ Cost of 1000 g of sugar is Rs. $50$

$\therefore$ Cost of 342 g of sugar $=\frac{50}{1000}\times 342$

$=Rs.17.1$