Posted by **Sira** on Thursday, October 11, 2012 at 2:22am.

Hi I need with with a prelab calculation for a Hydrate Crystal lab and I am so confused @_@ You don't really need to solve it if you don't want to, I just need an example on how to do these problems

1) Find the mass of the water that evaporated upon heating

- Mass of crucible is 15.12g

- Mass of crucible and CuSO4 • ?H2O is 15.67g

- Mass of crucible and CuSO4 after heating is 15.43g

2) Find the mass of the CuSO4 (without water)

3) Find the mols of water evaporated

4) Find the mols of CuSO4

5) Find the ratio of mols water to mols CuSO4

6) Write the formula for the hydrate CuSO4 • ?H2O

## Answer this Question

## Related Questions

- chemistry - I need help with this lab. Write the equation for the decomposition...
- Chemistry - I need help with this lab. Write the equation for the decomposition ...
- Science - Identify commonly used lab equipment. (beaker, graduated cylinder, ...
- Chemistry - The question says Sufuric acid reacts with Aluminum hydroxide by ...
- Chemistry - Need help with my lab report for specific heat of unknown metal! I ...
- chemistry - What is the actual hydrate formula for Barium Chloride? I did a lab ...
- chemistry - Determine the hydroxide ion concentration in a solution that is 0....
- algebra - Essay show all work. Add the following polynomials; (1/5x^2-1/5x-3/4...
- Math - I need to express the following in equivalent form: m-2/m^2-5m+6 , 2x+6/x...
- Organic Chemistry Lab - Hi! For an orgo lab we had to isolate the following from...

More Related Questions