Mass of empty test tube: 44.36g
Mass of test tube and hydrate: 46.79
Mass of test tube and anhydrate (after step 5) : 45.56g
Mass of test tube and anhydrate after 2nd heating: 45.26g
Mass of test tube and anhydrate after 3rd heating: 45.25g

A. Calculate the mass of anhydrous magnesium sulfate
B. Calculate the moles of anhydrous magnesium sulfate using the molar mass of magnesium sulfate.
C. Calculate the mass of water driven off from hydrate.
D. Calculate the number of moles of water from the hydrate using the molar mass of water.

E. MgSO4 + H2O —> MgSO4+ H2O
Using your answers calculations b and d and the above chemical equation, determine the mole ratio of MgSO4 to H2O to the nearest whole number. Express your answers as __ moles of water to __ moles of MgSO4.