A compound contains 6.0 g of cabon and 1.0 g of hydrogen. The percent composition of the compound is: 14 % hydrogen and 86 % carbon. 86 % hydrogen and.
Percent composition is the percent by mass of each element present in a compound. Water, H2O, is the first example. One mole of water is grams.
SparkNotes online free test prep. There are two different ways to describe the composition of a compound: in terms of the number of its its constituent elements by determining the percent composition of particular elements in the molecule.