What will be the effect on the calculated percent water in the unknown (greater or smaller), if the following events occur? Explain your answers. (a) Some of the hydrate spatters out of the crucible. (b) The crucible containing the hydrate is not heated long enough. (c) The empty covered crucible is weighed while it is hot. Calculate the percent water in each of the following hydrates: CaSO42H2O,CaCrO42H2O2AlCl3. 6H2O,ZnSO47H2O. If all the labels on these four bottles are gone, describe briefly how you identify each. Jennifer was a pre-pharmacy student and enrolled in general chemistry laboratory. One day the lab instructor asked Jennifer to identify a hydrate on the shelf labeled A,B,C, and D. They were possibly CaSO42H2O,CaCrO42H2O,AlCl36H2O, and ZnSO47H2O. Jennifer weighed 1.485g of a hydrate. After heating/weighing three times, she finally obtained 0.820g of the anhydrous compound. Jennifer concluded the hydrate was ZnSO47H2O. Was Jennifer's finding correct? Why