Question

The numbers of moles of $BaC{O}_3$ which contain $1.5moles$ of oxygen atoms is

• A. $0.5$
• B. $1$
• C. $3$
• D. $6.02\times 10^{23}$

Answer 1

Answer: (A)

$\therefore 3$ moles of oxygen is that in $1$ mole of $BaC{O}_3$
$\therefore 1.5$ moles of oxygen is that in mole of $BaC{O}_3$
$=\frac{1}{3}\times 1.5=\frac{1}{2}=0.5$