An Unknown Hydrate of Chromium(III)acetate,Cr(C₂H₃O₂)3 • XH₂O,is Heated to Give

An unknown hydrate of chromium(III) acetate,Cr(C₂H₃O₂) 3 • XH₂O,is heated to give 7.29% water.What is the water of crystallization (X) for the hydrate?

A) 1
B) 4
C) 6
D) 8
E) 12