Use the data below to solve for the formula of BeO$*?H_{2}O.$

Mass of hydrate $=8\mathrm{.}61$grams

Mass of anhydrous $=5\mathrm{.}01$ grams

SHOW WORK FOR THE FOLLOWING

The mass of the water $=?$

How many moles of water are present per mole of anhydrous salt?

What is the formula of the hydrate?

Properly name the hydrate