Question

Human body needs energy. One such source is sucrose. how much oxygen is needed to oxidise 50gm of sucrose​

Answer 1

Answer:

56 .09 gram of oxygen is needed to oxidize 50 gram of sucrose​.

Explanation:

$C_{12}H_{22}O_{11}+12O_2 \rightarrow 12CO_2+11 H_2O$

Moles of sucrose = $\frac{50 g}{342.3 g/mol}=0.1460 mol$

According to reaction, 1 mole of sucrose is oxidized by 12 moles of oxygen gas.

Then 0.1460 mole of sucrose will be oxidized by:

$\frac{12}{1}\times 0.1460=1.7528 mol$ of oxygen gas

Mass of 1.7528 moles of oxygen gas:

1.7528 mol × 32 g/mol=56 .09 g