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If 20 g of CaCo3 is …

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If 20 g of CaCo3 is treated with 20g of HCl , how many grams of Co2 can be produced according to the reaction.

Posted by Pooja ** 5 years, 1 month ago

CBSE > Class 11 > Chemistry

1 answers

Tushar Hooda 5 years, 1 month ago

CaCO3 + 2 HCl ------> CaCl2 + H2O + CO2 Thus, 1 mole of calcium carbonate treated with 2 mole of hydrochloride acid gives you 1 mole of carbon dioxide. Now, no.of moles in calcium carbonate = 20/100 = 0.2 moles Thus, we get from above that, 0.2 moles of calcium carbonate will give 0.2 moles of carbon dioxide. Now, We know molar mass of CO2=44 g And moles of CO2= 0.2 Thus, Mass of CO2= 44×0.2 = 8.8 g Hence , we get that 20g of CaCl2 will give 8.8 g of CO2. Similarly, you find the mass of CO2 with using HCl and In both the cases you will get same answer

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