Thread: Moles question
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Old 10 Jun 2009, 8:09 PM   #3 (permalink)
shady145
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Re: Moles question

for the second part write a balanced chemical equation
H2SO4 + CaCO3 --------- > CaSO4 + CO2 + H2O

so they combine in ratios of 1:1 therefore the mole ratios are 1:1.
now work out the moles for calcium carbonate
n=m/mm=3/100.09=0.03
so thats means, becasue the mole ratio is 1:1 then .03 mole of sulfuric acid is consumed, .03 mole carbon dioxide is produced, and 0.3 mole calcium sulphate. u can work out using n=m/mm to find massess of each needed
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