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melvillc
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Joined: Tue Oct 23, 2007 8:17 pm

HW HELP PLZ

Post by melvillc »

How many grams of ALCL3 must decompose in order to produce 3.10 dm^3 of Cl2 at 50.0degrees C and 98.4 kPa?
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peter
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Re: HW HELP PLZ

Post by peter »

melvillc wrote:How many grams of ALCL3 must decompose in order to produce 3.10 dm^3 of Cl2 at 50.0degrees C and 98.4 kPa?
You definitely need to start by writing a balanced equation:

Code: Select all

2AlCl3 = 2Al + 3Cl2
Then the solution need to go as follows:
1) Compute the number of moles of Cl2
2) Compute the number of moles of AlCl3
3) Compute mass of AlCl3

Hope this will help :)
~peter
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