Question

Which quantity represents the most molecules?
1 g h20
1 g h2
1 g o2

Answer 1

Explanation:

h2O = 1*2 + 16 = 18 g per.mole

H2 = 2 g per.mole

O2 = 32 g per.mole

therefore

h2O is 1/18 moles

H2 is 1/2 mole

O2 is 2/32 mole

1/2 is largest of them

more.moles = more.moleciles

clearly 1g of H2 has most molecules