How many moles of potassium chlorate need to be heated to pr... | CHEMISTRY - STOICHIOMETRY AND STOICHIOMETRIC CALCULATIONS | SolveeIt | Solveeit

Today, August 18

Question

How many moles of potassium chlorate need to be heated to produce 11.2 litre oxygen at N.T.P.

A

$\frac{1}{2}$ mol

B

$\frac{1}{3}$ mol

C

$\frac{1}{4}$ mol

D

$\frac{2}{3}$ mol

Answer

$\frac{1}{3}$ mol

Explanation

Solution

(2)

KClO3 $\longrightarrow$ KCl + $\frac{3}{2}$ O2

$\frac{3}{2}$ mole or 33.6 litre O2 from 1 mole KClO3

11.2 litre of O2 formed by $\frac{1}{3}$ mole KClO3