Question

Find the mass of:(a) .2 moles of oxygen gas (b) 1.5 moles of water (c) 3 moles of neon (a) .5 moles of sodium (e) 2 moles of nitrogen element

Answer 1

the mass of two mole of oxygen is 32
the mass of one and a half mole of water is 27
the mass of 3 mole of neon is 60
the mass of 0,5 of sodium is 11