A compound weighing 115 g contains 68.3 g of carbon, 13.2 g of hydrogen, 15.9 g of nitrogen, and some amount of oxygen. Solve for the mass percent of oxygen in the compound.
Weight of the compound = 115 gm Weight of carbon = 68.3 gm Weight of hydrogen = 13.2 gm Weight of nitrogen = 15.9 gm Then Amount of oxygen = 115 - (68.3 + 13.2 + 15.9) = 115 - 97.4 = 17.6 gm Percentage of oxygen = (17.6/115) * 100 = 15.30 percent From the above deduction, it can be concluded that the correct option among all the options that are given in the question is option "B".
