The number of hydrogen atoms in 0.050 mol of C₃H₈O₃ is A) 3.0 * 10²² H atoms B) 1.2 * 10²³ H atoms C) 2.4 *10²³ H atoms D) 4.8 * 10²³ H atoms E) None of these choices is correct.

Question

Quizplus · Accepted Answer

Each molecule of C3H8O3 contains 8 hydrogen atoms. Therefore, 0.050 mol of C3H8O3 contains 0.050 mol * 8 = 0.40 mol of H atoms. Using Avogadro's number (6.022 * 10^23 atoms/mol), the number of hydrogen atoms is 0.40 mol * 6.022 * 10^23 atoms/mol = 2.4 * 10^23 H atoms.

The Number of Hydrogen Atoms in 0