Question

6. Molar Mass of water is 18 g mol-1

, what is the mass of 1 mole of water? .

7. *The number of atoms in 1 mole of hydrogen is twice the number of atoms in one mole

of helium. Why?

8. Write the chemical formulas for the following:

i) Silver oxide ii) Iron (III) sulphate

9. Calculate molar mass of H2O2 & HNO3.

10. What is the mass of 0.2 moles of oxygen molecules?​

Answer 1

Answer:

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