The number of atoms in 0.1 mol of a triatomic gas is:

Options

A. `6.026 xx 10^(22)`
B. `1.806 xx 10^(23)`
C. `3.6 xx 10^(23)`
D. `1.8 xx 10^(22)`

Answer

B

Explanation

1 mole of triatomic gas contains `= 3 xx 6.022 xx 10^23` atoms
0.1 mole of triatomic gas contains `3 xx 6.022 xx 10^23 xx 0.1 = 1.806 xx 10^23` atoms