A crucible is placed on a balance and is found to have a mass of 26.639 grams a sample of Na2SO4·xH2O is added to the crucible and the total mass is found to be 27.085 grams. The crucible is then placed on a ring stand and gently heated to remove to remove the bound water molecules. The final mass after heating was found to be 26.915 grams. What is the value for x in Na2SO4·xH2O? (The answer must be a whole number)

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".