Question

The number of molecules in $16g$ of methane is

• A. $3.0\times 10^{23}$
• B. $6.02\times 10^{23}$
• C. $\frac{16}{6.02}\times 10^{23}$
• D. $\frac{16}{3.0}\times 10^{23}$

Answer 1

Answer: (B)

1 mole always contains $=6.023\times 10^{23}$ molecules

1 mole of methane $=16g=6.023\times 10^{23}$ molecules