Calculating Relative Formula Masses (CFU)

Front

What is the relative formula mass (M_r) of potassium nitrate, KNO₃?

Back

101

Front

What is the relative formula mass (M_r) of sulfuric acid, H₂SO₄?

Back

98

Front

What is the relative formula mass (M_r) of iron (III) oxide, Fe₂O₃?

Back

160

Front

What is the relative formula mass (M_r) of magnesium chloride, MgCl₂?

Back

95

Front

What is the relative formula mass (M_r) of ethanol, C₂H₅OH?

Back

46

Front

Define relative formula mass (M_r).

Back

The relative formula mass (M_r) is the sum of the atomic masses of all atoms in a chemical formula, relative to the mass of carbon-12.

Front

What is the atomic mass of potassium (K)?

Back

39.1

Front

What is the atomic mass of nitrogen (N)?

Back

14

Front

What is the atomic mass of oxygen (O)?

Back

16

Front

What is the atomic mass of sulfur (S)?

Back

32.1