3. a. If "Epsom salt", MgSO4. xH₂O, is heated to 250 ° C, all the water of hydration is lost. Write the chemical equation that represents this process. (The coefficient for the water will be X since you don't know the formula for the hydrate.) b. On heating a 1.687 g sample of the hydrate, 0.824 g of Mg SO4 remains. How many molecules of water occur per formula unit of MgSO4. Write the complete formula of the hydrate and state the complete name.

Chemistry & Chemical Reactivity
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ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter4: Stoichiometry: Quantitative Information About Chemical Reactions
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please solve a and b 

3.
a. If "Epsom salt”, MgSO4. xH₂O, is heated to 250 ° C, all the water of hydration is lost. Write the
chemical equation that represents this process. (The coefficient for the water will be X since you
don't know the formula for the hydrate.)
b. On heating a 1.687 g sample of the hydrate, 0.824 g of Mg SO4 remains. How many
molecules of water occur per formula unit of MgSO4. Write the complete formula of the
hydrate and state the complete name.
Transcribed Image Text:3. a. If "Epsom salt”, MgSO4. xH₂O, is heated to 250 ° C, all the water of hydration is lost. Write the chemical equation that represents this process. (The coefficient for the water will be X since you don't know the formula for the hydrate.) b. On heating a 1.687 g sample of the hydrate, 0.824 g of Mg SO4 remains. How many molecules of water occur per formula unit of MgSO4. Write the complete formula of the hydrate and state the complete name.
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