For which of the following compounds does 1.0 g represent 2.27 × 10^-2 mol?

Question

Quizplus · Accepted Answer

To determine the number of moles represented by 1.0 g, we need to divide the given mass by the molar mass of the compound. For option A: H₂O Molar mass = 1+32+12+32+16 = 93 g/mol Number of moles in 1.0 g = 1.0/93 = 0.01075 mol For option B: C₂H₆ Molar mass = 12+32+12+1+16+32+1 = 106 g/mol Number of moles in 1.0 g = 1.0/106 = 0.00943 mol For option C: NH₃ Molar mass = 14+32+1+16 = 63 g/mol Number of moles in 1.0 g = 1.0/63 = 0.01587 mol For option D: CO₂ Molar mass = 12+16+32 = 60 g/mol Number of moles in 1.0 g = 1.0/60 = 0.01667 mol For option E: CO Molar mass = 12+16 = 28 g/mol Number of moles in 1.0 g = 1.0/28 = 0.03571 mol Therefore, option D (CO₂) is the only one with a calculated number of moles that matches the given value.

For Which of the Following Compounds Does 1