Tuesday

March 31, 2015

March 31, 2015

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

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

- Chemistry -
**DrBob222**, Thursday, October 11, 2012 at 2:52pm15.67g = mass xble + CuSO4.?H2O

-15.12g = mass sble

----------------

difference is mass CuSO4.?H2O

15.43g = mass xble and CuSO4

-15.12g = mass xble

-------------

difference is mass CuSO4 after heating.

mass CuSO4.?H2O

-mass CuSO4

--------------

differece is mass H2O lost.

mols H2O = grams H2O/molar mass H2O

mols CuSO4 = grams/molar mass CuSO4.

Find the ratio for 1 mol CuSO4 to x mols H2O and that becomes the formula of the hydrate. CuSO4.xH2O

**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 ...

algebra - Essay show all work. Add the following polynomials; (1/5x^2-1/5x-3/4...

Organic Chemistry Lab - Hi! For an orgo lab we had to isolate the following from...

Math - I need to express the following in equivalent form: m-2/m^2-5m+6 , 2x+6/x...

Calculus: need clarification to where the #'s go - A particle is moving along ...