A hydrate of beryllium nitrate has the following formula:
Be(NO3)2 - x H2O. The water in a 3.41-g sample of the hydrate was
driven off by heating. The remaining sample had a mass of 2.43 g .
Find the number of waters of hydration (x) in the hydrate. Hint:
Solving a hydrate problem is just like solving an empirical formula
problem. Instead of finding the moles of each element, you need to
find the moles of each part of the hydrate: the ionic salt and the
water. Once you find those, just find the ratio.