A student was determining the formula for the hydrate of barium chloride, BaCl2 in a laboratory. The student cleaned, dried, and determined the mass of the crucible and cover and then added a sample of the hydrate to the crucible and determined the mas after that the sample was heated in crucible strongly for 10 minutes. The sample in the crucible and cover was cooled and the mass was determined. The mass data is provided in the table below:
Mass of crucible and cover | 31.623 grams |
Mass of crucible, cover, and sample prior to heating | 33.632 grams |
Mass of crucible, cover, and sample after heating | 33.376 grams |