Question

$1026g$ of sucrose on hydrolysis gives how many mole(s) of glucose?
$($ Atomic wt : $C=12u,H=1u,O=16u)$

Answer 1

Answer: 3

The molecular weight of sucrose $C_{12}{H}_{22}{O}_{11}$ is $12\times 12+22\times 1+11\times 16=342g/mol$ .
Thus, $342g$ of sucrose corresponds to $1mole$ .
$\therefore 1026g$ of sucrose corresponds to $\frac{1026}{342}=3moles$ .
$1$ mole of sucrose on hydrolysis gives $1$ mole of glucose and $1$ mole of fructose.
$\therefore 3$ moles of sucrose gives $3$ moles of glucose.