Question

How many molecules of sulphur are present in $9.6g$ of sulphur (atomic mass of $S=32$)

• A. $2.25\times {10}^{22}$
• B. $2.408\times {10}^{23}$
• C. $6.02\times {10}^{23}$
• D. $18.06\times {10}^{22}$

Answer 1

The correct option is D $18.06\times {10}^{22}$

No. of molecules of sulphur present in 9.6gm = $\frac{9.6}{32}=0.3\ast 6.023\ast {10}^{23}=18.06\ast {10}^{22}$