# chemistry

Prepare 250mL of 2.00M CuSO4 from CuSO4 x 5H2O

1. 👍 0
2. 👎 0
3. 👁 134
1. You want how many moles of CuSO4?
M x L = moles = 2.000 x 0.250 L = ??

How many grams CuSO4 is that?
moles = grams/molar mass and solve for grams CuSO4 = xx grams CuSO4.

BUT you don't have CuSO4. You have CuSO4.5H2O so convert xx g CuSO4 to zz grams CuSO4.5H2O.
That will be done easily by
[xx g CuSO4 x (molar mass CuSO4.5H2O/molar mass CuSO4)] = ?? and weigh out that many grams of CuSO4.5H2O. Place in a 250 mL volumetric flask, add enough water to dissolve all of the solid, add water to the mark, shake until the solution is thoroughly mixed.

1. 👍 0
2. 👎 0
posted by DrBob222

## Similar Questions

1. ### chemistry

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

asked by Jake on February 11, 2009
2. ### chemistry

How many grams of CuSO4 . 5H2O are needed to prepare 100ml of a 0.10M solution? Remember to change the given volume to liters and take the moles and convert them to grams via the molar mass to get grams of CuSO4 . 5H2O

asked by haley on April 20, 2015
3. ### science

How many grams of CuSO4 .5H2O are needed to prepare 50 ml of 0.30M CuSO4 solution

asked by kesiha on March 7, 2010
4. ### Chemistry

Anhydrous CuSO4 can be used to dry liquids in which it is insoluble. The CuSO4 is converted to CuSO4.5H2O, which can be filtered off from the liquid. What is the minimum mass of anhydrous CuSO4 needed to remove 12.4g H2O from a

asked by Kaylee on September 21, 2010
5. ### chemistry

i find it confusing on how to do this question.. what mass of solute is needed to prepare 400 mL of 0.850 M CuSO4 from CuSO4.5H2O

asked by anonymous on July 15, 2013
6. ### Chemistry

A student was asked to prepare a sample of copper(ii)sulphate crystals(CUSO4.5H2O) given 5g of of copper (ii)oxide (CUO) as the starting material.if 10g of dry crystals of CUSO4.5H2O were obtained,calculate the percentage yield???

asked by Newton on May 10, 2015
7. ### Chemistry

If you needed 2.50g of CuSO4 for a reaction but only had CuSO4 * 5H2O available, how many g would you need to use to get the same number of moles of CuSO4?

asked by Danny on May 3, 2010
8. ### Chemistry

Answer the following question about copper (II) sulfate pentahydrate: a)how much water (in g) is there in 10.0 g of the compound listed above? b)If you needed 2.50g of CuSO4 for a reaction but only had CuSO4 * 5H2O available, how

asked by Jack on May 2, 2010
9. ### Chemistry

Is the decomposition equation for copper sulphate hydrate (CuSO4.5H2O) as follows: CuSO4+5H2O? Thanks

asked by Emma on October 21, 2009
10. ### Chemistry

Determine the mass of PbSO4 produced when 10mL of 0.2M CuSO4 reacts with 10mL of 0.2M Pb(NO3)2? Balance the equation CuSO4 + Pb(NO3)2 → PbSO4 + Cu(NO3)2 Find the number of moles for CuSO4 c=n/v n=c × v n=0.2 × 0.01 n=0.002 mol

asked by Kendall on August 5, 2015

More Similar Questions