Experimental Determination of the Hydration Formula of Magnesium Sulfate and Environmental Effects

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Experimental Determination of the Hydration Formula of Magnesium Sulfate and Environmental Effects 1. Use your experimental data to calculate the formula for hydrated MgSO4 Answer: Mass of crucible : 14.3 g Then the mass of hydrated MgS0O4 is : 22.3-14.3=8.0¢g The mass of anhydrous MgSO4 is: 20.8 —-14.3=6.5¢g So we removed 8-6.5 = 1.5 g of water Therefore we have 6.5/(24.305+32.066+15.9994*4) = 0.054 moles of MgSO4 and 1.5/(2*1.00794+15.9994) = 0.083 moles of H20 : by calculation the ratio 0.083/0.054 ~ 1.5 the formula is then : 3 MgS04, 2H20 3. Why might the method used not be suitable for determining the water of hydration for all hydrates. Answer: This method is not always suitable because waters of hydration could come off at different temperatures in different compounds and it is necessary to work at low temperature in order not to decomnose the anhvdride I~ StudyXY
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