Question

how many molecules of co2 are formed when 100 gm of caco3 is reacted with hcl​

Answer 1

Answer:

6.023 x 10^23 molecules of CO2

Explanation:

100g of CaCO3 means nothing but one mole of CaCO3.

1 mole of CaCO3 gives out 1 mole of CO2 which contains 6.023 x 10^23 CO2 molecules.

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