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Topic: Gen Chem 2 Lab Report Assistance  (Read 1579 times)

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Offline Ar4bAce

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Gen Chem 2 Lab Report Assistance
« on: August 27, 2016, 10:58:06 PM »

http://imgur.com/a/lqGwr

The numbers next to the blue 4.0 cannot be changed they are the lab data. The numbers next to the SF + 1 need to be calculated based on the blue numbers. Can you please check if I did the moles correctly then help me calculate the percent mass? Thank you.

The balanced equation: 5 Fe(+2) + MnO4(-1) + 8 H(+1) ---> 5 Fe(+3) + Mn(+2) + 4H2O
The charges are in parantheses
« Last Edit: August 28, 2016, 06:34:43 AM by Arkcon »
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Offline AWK

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Re: Gen Chem 2 Lab Report Assistance
« Reply #1 on: August 27, 2016, 11:19:18 PM »
To check your calculations, at least a balanced reaction of titration is needed.
Did you analyse a metallic iron?
« Last Edit: August 28, 2016, 12:29:31 AM by AWK »
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Offline Ar4bAce

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Re: Gen Chem 2 Lab Report Assistance
« Reply #2 on: August 28, 2016, 07:39:17 PM »
I have added the balanced equation
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Offline AWK

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Re: Gen Chem 2 Lab Report Assistance
« Reply #3 on: August 28, 2016, 10:56:38 PM »
My question is still valid. Moles of Fe are not calculated according to your equation.
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