Question

What is the molecular mass of hydrogen peroxide, H2O2?

Answer
What is the molecular mass of hydrogen peroxide, H2O2?

Question at position 2
2

Numeric
6.6 points



Question at position 2
What is the molecular mass of lithium fluoride, LiF?

Answer
What is the molecular mass of lithium fluoride, LiF?

Question at position 3
3

Numeric
6.6 points



Question at position 3
What is the molecular mass of aluminum oxide, Al2O3?

Answer 1

1) H2O2: (2 × 1.008) + (2 × 16.00) = 34.02 g·mol⁻¹ (≈ 34.016 g·mol⁻¹)

2) LiF: 6.94 + 19.00 = 25.94 g·mol⁻¹ (≈ 25.94 g·mol⁻¹)

3) Al2O3: (2 × 26.98) + (3 × 16.00) = 101.96 g·mol⁻¹ (≈ 101.96 g·mol⁻¹)