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April 23, 2026, 09:48:40 am
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Author Topic: stoich  (Read 882 times)  Share 

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lacoste

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stoich
« on: April 16, 2009, 06:15:10 pm »
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3 One major industrial source of the greenhouse gas carbon dioxide is the heating of limestone, CaCO3, to produce
quicklime, CaO. This reaction is used in a range of industries. The equation for the decomposition of limestone is:
CaCO3(s) ------>CaO(s) + CO2 (g)
a)What mass of quicklime will be produced when 100 tonnes of limestone
is heated? (1 tonne = 10^6 g)
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vibs23

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Re: stoich
« Reply #1 on: April 16, 2009, 06:19:34 pm »
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n(cacco3) = 10^6/Mr(cac030) = 10,000 mol

n(ca0) = n(cac03)= 10,000 x Mr (ca0) = 0.56 tonnes
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lacoste

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Re: stoich
« Reply #2 on: April 16, 2009, 06:26:19 pm »
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Do we convert 100 tonnes to grams?

You did 1 tonne to 10^6 grams, but why not the 100 tonnes to grams?

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lacoste

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Re: stoich
« Reply #3 on: April 16, 2009, 06:37:11 pm »
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Quote from: lacoste on April 16, 2009, 06:26:19 pm
Do we convert 100 tonnes to grams?

You did 1 tonne to 10^6 grams, but why not the 100 tonnes to grams?



nvm, got it

lol
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