[confus3d]

Magnesium sulfate forms a hydrate known as Epsom salts.  A chemistryhead dissolved 1.24 grams of this hydrate in water and added a barium chloride solution until the precipitation of barium sulfate was complete.  The precipitate was filtered, dried, and found to weigh 1.174 grams.

How many moles of BaSO₄ were formed?
   I got 5.03 x 10^-3
How many moles of MgSO₄ were in the original sample?
I also got 5.03 x 10^-3

How many grams of water were in the original sample?
 I got 0.63449 g H20

Determine the formula of Epsom Salts.

We have a quiz tomorrow and this is the problem with the same difficulty as the ones on the test. I'm so scared.

[Net-Devil]

I think this is what you are looking fore. right?

Chemical name: Magnesium Sulfate Heptahydrate ( or Hydrated)

Chemical Formula: MgSO4 + 7H2O , (Hydrated Magnesium Sulfate)

Mineral Name: EPSOMITE (MgSO4 + 7H2O)

[confus3d]

I was actually looking for the step to step on how to do this but I figured it out! thanks