Quantitative Chemistry

Front

What is the relative formula mass of CO₂?

Back

44

Front

What is the unit for molar mass?

Back

g mol^-1

Front

What is the formula for iron(III) oxide? Options: FeO, Fe₃O, Fe₃O₂, Fe₂O₃

Back

Fe₂O₃

Front

Calculate the number of gold atoms in a 4 mole sample of gold.

Back

2.41x10²⁴

Front

Calculate the number of moles of Aluminum in a 2.04 mole sample of aluminum oxide, Al₂O₃.

Back

4.08 moles

Front

Calculate the mass of oxygen present in a 55g sample of Aluminum oxide, Al₂O₃.

Back

29.28

Front

Calculate the % composition by mass of oxygen present in H₂SO₄.

Back

65.25%

Front

What is the empirical formula of a compound if the molecular formula is W₁₈O₉?

Back

W₂O

Front

Which represents the greatest mass of sulfur? Options: 1 gram of sulfur, 1 molecule of sulfur, 0.5 mole of sulfur, 6.02 x 10²³ atoms of sulfur

Back

6.02 x 10²³ atoms of sulfur

Front

What is the mass of one mole of aluminum?

Back

27 g