gravimetric analysis lab

Consider the following potential errors in this experiment. If they had occurred, how would they have affected your \% Ni and degree of hydration. (Note- It would make them wrong" is not an answer. Would they increase or decrease the numbers?) a. A student uses 0.7g of sample instead of 1.0g of sample. b. A student weighs their crucibles with precipitate without letting them dry in the oven. c. A student neglects to rinse the precipitate off their thermometers and stirring rods