Isopropyl alcohol, (ch3)2choh, is a common solvent. determine the percent by mass of hydrogen in isopropyl alcohol. a) 6.71% h b) 13.4% h c) 25.0% h d) 53.3% h

B) 13.4 %.

Explanation:

Isopropyl alcohol has the general molecular formula C₃H₈O.Its molar mass = 60.1 g/mol.The percent by mass of H = [(no, of H atoms x molar mass of H) / (molar mass of isopropyl alcohol)] x 100 = [(8.0 atoms x 1.0 g/mol) / (60.1 g/mol)] x 100  = 13.333 % ≅ 13.4 %.