Question

The number of molecules in 89.6 litre of a gas at STP are

(A)6.02 X 10²³
(B)2 X 6.02X 10²³
(C)3 X 6.02X 10²³
(D)4 X 6.02X 10²³

Answer 1

At STP ,
22.4 L of a gas contains = 6.022$\times$10²³ molecules
89.6 L of a gas = $\frac{6.022\times {10}^{23}}{22.4}\times 89.6$ = 4 $\times$6.022$\times$10²³ molecules