The number of hydrogen atoms in 0.050 mol of C₃H₈O₃ is

Question

Quizplus · Accepted Answer

To determine the number of hydrogen atoms in 0.050 mol of C₃H₈O₃, we first need to identify how many hydrogen atoms are in one molecule of the compound. By counting the subscripts, we can see that there are 7 hydrogen atoms in one molecule of the compound. Next, we use Avogadro's number (6.022 × 10^23) to convert from moles to individual molecules: 0.050 mol x (6.022 × 10^23 molecules/mol) = 3.011 × 10^22 molecules Finally, we multiply the number of molecules by the number of hydrogen atoms per molecule: 3.011 × 10^22 molecules x 7 H atoms/molecule = 2.107 × 10^23 H atoms Rounding to two significant figures gives us the final answer of 2.4 × 10^23 H atoms, which corresponds to answer choice C.

The Number of Hydrogen Atoms in 0