Calculate the mass of ammonia NH3 that contains a million 1.0 x 10^6 hydrogen atoms.

Question

Calculate the mass of ammonia NH3 that contains a million 1.0 x 10^6 hydrogen atoms.

Be sure your answer has a unit symbol if necessary, and round it to 2 significant digits.

Answer 1

1.0x10⁶ H atoms x 1 molecule NH₃/3 H atoms x 1 mol NH3/6.02x10²³ molecules x 17 g/mol = 9.4x10^-18 g NH₃