im not quite sure what to do with this problem...

the info I have:
-balanced equation= (CuCl2*2H20)=>CuCl2+2H2O
-initial mass of copper compound: 0.94g

Q: use stiochiometry to find the theoretical yield for the mass of copper (II) chloride

we also used 30mL of water in our experiment if that helps
thank you!

1 answer

This is one type of stoichiometry problem; all of this kind are worked the same way.
Write the equation and balance it. You have that.

Convert 0.94 (if that is the starting material) to moles. moles = grams/molar mass

Using the coefficients in the balanced equation, convert moles CuCl2.2H2O to moles CuCl2. That's a 1:1 ratio.

Now convert moles CuCl2 to grams CuCl2. Grams = moles x molar mass. That will be the theoretical yield of CuCl2.
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