### HW E.9

Posted:

**Thu Oct 04, 2018 5:30 pm**Will we be expected to know how to write the formulas of any given compound for the upcoming test? In this case the problem asks to write the formula magnesium sulfate heptahydrate.

Created by Dr. Laurence Lavelle

https://lavelle.chem.ucla.edu/forum/

https://lavelle.chem.ucla.edu/forum/viewtopic.php?f=8&t=33047

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Posted: **Thu Oct 04, 2018 5:30 pm**

Will we be expected to know how to write the formulas of any given compound for the upcoming test? In this case the problem asks to write the formula magnesium sulfate heptahydrate.

Posted: **Thu Oct 04, 2018 5:32 pm**

I'm pretty sure for now Dr. Lavelle said he would give us the formula but we'll be learning how to name them and find their formulas pretty soon.

Magnesium sulfate heptahydrate would be MgSO4 * 7(H2O)

Hope this helps!

Magnesium sulfate heptahydrate would be MgSO4 * 7(H2O)

Hope this helps!

Posted: **Fri Oct 05, 2018 5:00 pm**

Yeah, Lavelle said that he would give us the formula, and it won't be until later on when we learn how to write formulas that he will expect us to do it by ourselves.

Posted: **Mon Oct 08, 2018 11:46 am**

We'll be given the formulas, so we don't need to know them by name. We just need to focus on the concepts he lectured on for the first test.