Calculate the volume of gas released during the decomposition of 20 g of limestone containing 10% of impurities.
| November 30, 2020 | education
Calculate the volume of gas released during the decomposition of 20 g of limestone containing 10% of impurities. Find the mass of pure CaCO3. Find the amount of substance CaCO3
caco3 = cao + co2
let’s make a proportion
20 g-100%
x g-90%
x = 18g
18 g is the mass of pure calcium carbonate
find the amount of calcium carbonate substance
n = 18/100 = 0.18 mol
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