Epsom salts, a strong laxative used in veterinary medicine, is a hydrate, which means that a certain number of water molecules are included in the solid structure. The formula for Epsom salts can be written as MgSO_{4} · x H_{2}O, where x indicates the number of moles of H_{2}O per mole of MgSO_{4}. When 5.469 g of this hydrate is heated to 250°C, all the water of hydration is lost, leaving 2.671 g of MgSO_{4}. What is the value of x? Use the longest values so (ie, 18.015 for water) etc

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The formula for Epsom salts can be written as MgSO_{4} · x H_{2}O, where x indicates the number of moles of H_{2}O per mole of MgSO_{4}. When 5.469 g of this hydrate is heated to 250°C, all the water of hydration is lost, leaving 2.671 g of MgSO_{4}. What is the value of x? Use the longest values so (ie, 18.015 for water)

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