Question

Find the volume of the following at `STP`.
a. `14 g` of mitrogen
b. `6.023 xx 10^(22)` molecules of `NH_(3)`
c. `0.1 "mole of " SO_(2)`.

Answer 1

a. 1 mole of `N_(2) implies 28 g = 22.4 L` at `STP`
`14 g = 11.2 L`
b. 1 mole of `NH_(3) = 17 g`
`= 6.023 xx 10^(23)` molecules `= 2.24 L`
`:. 6.023 xx 10^(22)` molecules `= 2.24 L`
c. 1 mol of `SO_(2) = 32 + 16 xx 2 = 64 g = 22.4 L`
0.1 mole of `SO_(2) = 2.24 L`