Question

500 ml of $N{H}_3$ contains $6.02\times {10}^{23}$ molecule at STP. How many molecules are present in 100 ml of $C{O}_2$ at STP?

• A. $6X{10}^{23}$
• B. $1.5X{10}^{23}$
• C. $1.2X{10}^{23}$
• D. None of these

Answer 1

The correct option is C $1.2X{10}^{23}$

$500ml$ $N{H}_3$ certain $6.02\times {10}^{23}$ molecule

total amount of $C{O}_2=100mp$

the number of molecule of $C{O}_2=\frac{100}{500}\times 6.02\times {10}^{23}$

$=1.2\times {10}^{23}$

option C is correct option