Consider the following potential sources of error in an experiment designed to calculate the value of x in MgSO4 . x H2O. Predict whether the value of x of the hydrate will be high, low, or unchanged as a result of each error and please explain.
-Water was observed around the mouth of the test tube after heating.
-The anhydrous residue decomposed upon heating, liberating a gas.
-The hydrate spattered during heating and some of the sample was lost.