Id appreciate your help. A 4.450g sample of hydrated lithium iodide, Lil xH2O is dried in an oven when the anhydrous compound is removed from the oven its mass is 3.170g. what is the formula of the hydrated lithium iodide?

Question

raspberryjam · Answer

Do you know what anhydrous means? The difference in the weights should give you a clue that something was removed. Use the difference in the weights to figure out how many mols of water there are and how many mols of LiI there is. Divide the mols of H2O by the mols of LiI to figure out what the x is.