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Homework Help: Chemistry 1 hydrated crystals lab

  1. Apr 24, 2010 #1
    1. The problem statement, all variables and given/known data
    "Use your experimental data to calculate the formula for hydrated MgSO4"

    2. Relevant equations
    i used 2.25g x 1 mole/141.46 = 0.016 moles

    3. The attempt at a solution
    i'm not sure how to calculate the formula. how do i do that? is there a different equation involved?
    please reply, i really need help.
  2. jcsd
  3. Apr 25, 2010 #2


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    assume that your product is pure MgSO4. You know the mass and FW. Calculate moles. The difference in wt betwieen starting material and product represents what?
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