Calculating Negative Charge in Nitrogen Gas: A Static Electricity Problem

AI Thread Summary
The discussion revolves around a physics quiz question regarding the calculation of negative charge in nitrogen gas, specifically asking for the amount of nitrogen gas that corresponds to 0.8 MCb of negative charge. The user believes their answer of 1.19 mol is correct, derived from calculating the charge per mole of nitrogen atoms, but the provided correct answer is 0.592 mol. The user notes that nitrogen gas is diatomic (N2), which may affect the calculations. The confusion seems to stem from not accounting for the diatomic nature of nitrogen when calculating the total charge. Clarification on this point could help resolve the discrepancy in the answers.
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So, I'm in first year university physics and each week we have online quizzes. And I'm having trouble figuring out how I got this question wrong.

Q: In what amount of nitrogen gas are 0.8 MCb of negative charge? Note: each nitrogen atom has 7 electrons.

The answer they gave is 5.92 x 10^(-1) mol
but I'm not getting this answer, and I've tried so many times.

I keep on getting 1.19 x 10^(0) mol.
---> What I did was find Q by = (7)(1.6 x 10^-19)(6.02 x 10^23) = 6.74 x 10^(5) Cb/mol
---> Then to find n I did = 0.8 x 10^6 / 6.74 x 10^5 = 1.19

If anyone could help me, that would be great. This problem is really bothering me.
THANKS :)
 
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Remember nitrogen gas is N2
 
i think maybe this should be moved to the homework forums?
 
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