Review equation 13.1. Suppose your sample absorbed some water vapor before you m

Question

Review equation 13.1. Suppose your sample absorbed some water vapor before you measured its mass, so that the following reaction occurs: 2CaCO3(s) + 2H2O(g) --> Ca(HCO3)2(s) + Ca(OH)2(s) Given that each HCO3^(-1) ion also reacts with acid to create one CO2 molecule, use stoichiometry to determine the effect on the overall moles of CO2 created. How is the initial mass measurement of your sample affected by the absorbed water? Explain what happens to your calculation for the CaCO3 mass %.

Equation 13.1--> CaCo3(s) + 2H3O^(+)(aq) ---> Ca^(2+)(aq) + 3H2O(l) + CO2(g)

Explanation / Answer

In presence of water CaCO3 is converted into CO2 gas which is remove from the system.

so that some of the CaCO3 is destroy in presence of water vapor in the sample.

so % mass of CaCO3 is less in compare to original.

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