Copper metal can be extracted from a copper(II) sulfate solution by electrolysis. If 45.20 g of copper(II) sulfate pentahydrate, CuSO4⋅5H2O, is dissolved in 100 mL of water and all the copper is electroplated out, what mass of copper will be obtained?
How would you figure this problem out, I’m sort of confided about where to begin
Textbook problem
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Julie Tran 3C
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Re: Textbook problem
Hello,
This problem is asking you for how much copper is in 45.20 g of copper(II) sulfate pentahydrate. You can solve for this by taking advantage of molar ratios:
1. convert 45.20g of CuSO4⋅5H2O to moles using its molar mass (you'd calculate this yourself)
2. figure out how many moles of Cu are in 1 mole of CuSO4⋅5H2O and use this conversion factor to translate the moles of CuSO4⋅5H2O in the previous step to moles of Cu
3. convert the moles of Cu to grams of Cu
The information about dissolution is meant to explain the experimental procedure through which you would obtain said copper; however you only need the mass of CuSO4⋅5H2O to solve for the mass of copper.
Hope this helps!
This problem is asking you for how much copper is in 45.20 g of copper(II) sulfate pentahydrate. You can solve for this by taking advantage of molar ratios:
1. convert 45.20g of CuSO4⋅5H2O to moles using its molar mass (you'd calculate this yourself)
2. figure out how many moles of Cu are in 1 mole of CuSO4⋅5H2O and use this conversion factor to translate the moles of CuSO4⋅5H2O in the previous step to moles of Cu
3. convert the moles of Cu to grams of Cu
The information about dissolution is meant to explain the experimental procedure through which you would obtain said copper; however you only need the mass of CuSO4⋅5H2O to solve for the mass of copper.
Hope this helps!
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