Rank the following in order of increasing mass: 2.0 mole of SO₂, 1.0 mole of SO₃, 0.50 mole of Mo, and 0.25 mole of Rn.

Question

Quizplus · Accepted Answer

To compare the masses of the given substances, we need to calculate their molar masses (in g/mol) first. Molar mass of SO₂: (32.07 x 2) + (15.99 x 3) + (126.90 x 1) + (12.01 x 22) + (1.01 x 12) + (15.99 x 22) = 925.87 g/mol Molar mass of SO₃: (32.07 x 2) + (15.99 x 3) + (126.90 x 1) + (12.01 x 23) + (1.01 x 12) + (15.99 x 22) = 948.89 g/mol Molar mass of Mo: (95.94 g/mol) = 95.94 g/mol Molar mass of Rn: (222.02 g/mol) = 222.02 g/mol Now we can arrange the substances in increasing order of their molar masses: Mo < Rn < SO₃ < SO₂ Therefore, the answer is C.

Rank the Following in Order of Increasing Mass: 2