Question

which has more number of atoms? 50g of O2 or 50g of H2O

Answer 1

Answer:  50g of O2 has more no. of atoms.

Explanation:

Molar mass of O2 = 16g

1 mole of O2 = 16g

1g of O2 = 1/16 moles

50g of O2 = 50/16 moles = 3.12 moles

Similarly,

Molar mass of H2O = 18g

1g of H2O = 1/18 moles

50g of H2O = 50/18 moles = 2.77 moles

"MORE NUMBER OF MOLES HAS MORE NUMBER OF ATOMS OR MOLECULES"

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