Question

Consider a mixture of sand and BaCl2 •2 H2O. A beaker containing the mixture weighed 72.248 g. When empty, the beaker weighed 69.748 g. The mixture contained 45.26% sand. a) What is the % hyrdrate and mass of the hydrate in the mixture? b) If the mixture was selectively decomposed by heating, how many grams and moles of water would be lost? Thank y

Answer 1

Answer:

Consider a mixture of sand and BaCl2- 2H20. A beaker containing the mixture weighed 72.248 g. When empty, the beaker weighed 69.748 g. The mixture contained 45.26% sand. % hydrate = mass of the hydrate = (a) What is the % hydrate and mass of the hydrate in the mixture? moles water lost = grams water lost = (b) If the mixture was selectively decomposed by heating, how many grams and moles of water would be lost? Show all well-organized work for each calculation below. Record the results of your calculations in the table (above) with correct s.f. & units: