The formula of hydrated magnesium sulphate crystals is MgSO4﹒xH2O. When 3.80 g of the hydrated crystals are heated, 2.00g of anhydrous magnesium sulphate are produced. What is the value of x?
plz explain and thanks.
chemistry
2012-08-18 12:04 am
回答 (1)
2012-08-18 12:28 am
✔ 最佳答案
Mass of water = 3.8 - 2 = 1.8 gMgSO4 H2O Mass (g) 2.0 1.8 No. of moles 2.0/(24.3+32.1+16*4) 1.8/18 0.01661 0.1 1 6
Hence x = 6
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