A single atom of hydrogen has a mass of 1.0 amu, while a mole of hydrogen atoms has a mass of 1.0 g. Select the correct conversion factor between atomic mass units and grams.

Question

Quizplus · Accepted Answer

The conversion factor between atomic mass units (amu) and grams (g) is given by the molar mass constant, which is 1.0 g/mol. Therefore, 1 amu is equal to 1/6.0 × 10^23 g, or approximately 1.66 × 10^-24 g. The correct conversion factor is therefore 1 g = 6.0 × 10^23 amu, or equivalently 1 amu = 1.66054 × 10^-24 g. Choice C correctly expresses this conversion factor.

A Single Atom of Hydrogen Has a Mass of 1