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Topic: identifying an unkown metal carbonate  (Read 4151 times)

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Offline nvrslep303

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identifying an unkown metal carbonate
« on: February 14, 2010, 05:33:16 PM »
For some reason this feels like it should be real easy.

"2.012 g of a metal carbonate, MCO3 upon heating gave the metal oxide, MO, and .885 g of CO2 in accord with the following equation. What is the identity of the metal? show calculations.

MCO3 (s) --------------> MO (s) + CO2 (g)   "

I'd really appreciate it  :-[
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Offline nvrslep303

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Re: identifying an unkown metal carbonate
« Reply #1 on: February 14, 2010, 05:40:15 PM »
The only thing that I end up thinking is finding the empirical formulas using the percentage. Argh.
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Offline Borek

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Re: identifying an unkown metal carbonate
« Reply #2 on: February 14, 2010, 06:19:53 PM »
How many moles of CO2?
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Offline nvrslep303

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Re: identifying an unkown metal carbonate
« Reply #3 on: February 14, 2010, 06:24:57 PM »
The question and formula was all that was given. I'm not sure but i think it might be balanced
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Offline renge ishyo

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Re: identifying an unkown metal carbonate
« Reply #4 on: February 14, 2010, 08:06:08 PM »
Borek is giving you a clue, finding the moles of CO2 is step #1 ;)
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Offline billnotgatez

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Re: identifying an unkown metal carbonate
« Reply #5 on: February 14, 2010, 09:01:57 PM »
Indeed, Borek has given a good hint.

renge ishyo   But, to be pedantic,  making sure you have a balanced equation is the first step, which is already done.
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