Posted by **Jake** on Wednesday, February 11, 2009 at 2:17am.

Calculate the mass of the solid you must measure out to prepare 100 mL of 0.025 M CuSO4.

Note that this salt is a hydrate, so its formula is CuSO4⋅5H2O. You must include the waters of hydration when calculating the formula weights.

Would the following set-up yield the correct answer?

(100 mL CuSO4⋅5H2O) x (1 L CuSO4⋅5H2O / 1000 mL CuSO4⋅5H2O) x (0.025 mol CuSO4⋅5H2O / 1 L CuSO4⋅5H2O) x (249.7 g CuSO4⋅5H2O / 1 mol CuSO4⋅5H2O)

= 0.624 g CuSO4⋅5H2O

Any feedback is appreciated. Thanks!

- chemistry -
**Dr Russ**, Wednesday, February 11, 2009 at 3:56am
CuSO4.5H2O

RMM=249.68

For 1000 ml of 1M need 249.68g

For 100 ml of 1 M need 24.968 g

For 100 ml of 0.025 M need 24.968 x 0.025 = 0.0624 g

Yes, agreed.

- chemistry -
**Anonymous**, Thursday, February 26, 2015 at 10:57am
How many grams of S are needed to produce 10g of CuS?

## Answer This Question

## Related Questions

- Chemistry - I'm going crazy please help me out part 1 of 2 Determine the mass of...
- chemistry - A sample of a hydrate of CuSO4 with a mass of 250 grams was heated ...
- Chemistry - Is the decomposition equation for copper sulphate hydrate (CuSO4....
- Chemistry - I need help with this lab. Write the equation for the decomposition ...
- chemistry - i find it confusing on how to do this question.. what mass of solute...
- Chemistry - Anhydrous CuSO4 can be used to dry liquids in which it is insoluble...
- chemistry - How many grams of CuSO4 . 5H2O are needed to prepare 100ml of a 0....
- Chemistry - Hi I need with with a prelab calculation for a Hydrate Crystal lab ...
- chemistry - I need help with this lab. Write the equation for the decomposition...
- Chemistry - A student was asked to prepare a sample of copper(ii)sulphate ...

More Related Questions