Design an experiment which is not a tritation, you could use to calculate the percentage of water of crystalallization in NA2CO3.xH20. Need apparatus, detailed method including precutions and assumptions, how the results are recorded and how the percentage is calculated

We don't do homework for you. This question is meant to make you think. Here is a hint. Could you weigh the sample, heat it to remove the water of crystallization, re-weigh, then calculate the moles Na2CO3 and moles H2O?