Question

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

Answer 1

The molecular weight of sucrose $C_{12}H_{22}O_{11}$ is $12\times 12+22\times 1+11\times 16=342\,g/mol$ .
Thus, $342\,g$ of sucrose corresponds to $1\,mole$ .
$\therefore 1026\,g$ of sucrose corresponds to $\frac{1026}{342}=3\,moles$ .
$1$ 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.