1.719g sample of CaCO3 mixture is thermally decomposed,producing CaO(s)&CO2(g).After reaction,mixture has mass of 1.048g.
How many grams&moles of CO2 are evolved?
How many moles&grams of CaCO3 are in mixture?
What is the percent CaCO3 in the mixture?
the mas of CO2 is=1.719-1.048 since it only esacpes as it is gas
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