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Topic: What mass of lead II oxide is obtained by heating 33.1g of lead II nitrate-CHECK  (Read 4927 times)

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Offline busi6292

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What mass of lead II oxide is obtained by heating 33.1g of lead II nitrate-CHECK
« on: August 04, 2009, 08:50:52 AM »
I think I have got this sorted. Please check this one. The question is in the title. The formula and working out I got is:

            2Pb(NO3)2        ---->    2PbO      +     4NO2     +    O2

RAM     NO3 = 62 X 2                  207 + 16 = 223           
          124 + 207 = 331               X 2 moles
          331 X 2moles = 662            = 446

662/662                                        446/662

446/662 X 33.1g = 22.3g as the answer?

Please tell me I am right! Thanks

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Offline plankk

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Re: What mass of lead II oxide is obtained by heating 33.1g of lead II nitrate-CHECK
« Reply #1 on: August 04, 2009, 10:59:21 AM »
You're right.  ;)
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Offline busi6292

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Re: What mass of lead II oxide is obtained by heating 33.1g of lead II nitrate-CHECK
« Reply #2 on: August 04, 2009, 12:44:56 PM »
Wow im a genius!

(cant wait to give it up)
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