Question

What is the mass of 1.505 * 10^23 molecules of oxygen gas

Answer 1

Hope you get your answer. Atoms & Molecules, We know that 1 mole or 6.023x10²³molecule of oxygen weights(2 × 16)gm = 32gm. So, 1.505x10²³ molecules of O2 will weight = 1.505x10²³x32/6.023x10²³gm