Question

17. How many grams of CO2 are produced when 10 grams of CaCO3 reacts with HCl according to equation?
CaCO3 + 2HCl → CaCl2 + CO2 + H20.
(a) 449
(b) 22g
(c) 10g
(d) 4.4g
(e) 11g
​

Answer 1

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4.4 g CO2

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explanation:

1 mole of CaCO3 --> gives --> 1 mole of CO2

so ,

100 g CaCO3 --> 44g CO2

so

10g CaCO3 --> 4.4g CO2