G.17

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ShravanPatel2B
Posts: 100
Joined: Fri Aug 30, 2019 12:18 am

G.17

Postby ShravanPatel2B » Sun Sep 29, 2019 3:21 pm

I solved question G.17 but I am not sure if my answers are correct.

(a) Determine the mass of anhydrous copper(II) sulfate that must be used to prepare 250 mL of 0.20 m CuSO4(aq).
b) Determine the mass of CuSO4?5H2O that must be used to
prepare 250 mL of 0.20 m CuSO4(aq).


a) For part A I solved for moles of CuSO4 and and then multiplied by the molar mass to get 7.98 g CuSO4
b) For part B I solved for moles of CuSO4 4H2O and then multiplied by the the molar mass to get 12.5 g

Thanks!

Shannon Asay 1C
Posts: 102
Joined: Fri Aug 09, 2019 12:16 am

Re: G.17

Postby Shannon Asay 1C » Sun Sep 29, 2019 3:41 pm

I followed the same process as you, solving for the moles given the molarity and volume, and then using the molar mass to convert to grams. I got the same answers as you for both a and b.

ShravanPatel2B
Posts: 100
Joined: Fri Aug 30, 2019 12:18 am

Re: G.17

Postby ShravanPatel2B » Sun Sep 29, 2019 3:47 pm

Thank You!


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