janiashviliana70 janiashviliana70

21-03-2024
Chemistry

contestada

Hi, help me with this pls 8 g of dolomite (CaCO3 - MgCO3), 3.8 g of CO2 were obtained by the action of an excess amount of acid. This sample contains calcium (%) :
a. 21,60
b. 21,72
c. 45,66
d. 54,34

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