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Problem: A sample of dolomite limestone containing only CaCO3 and MgCO3 was analyzed. When a .3028 gram sample of this limestone was decomposed by heating, .082 L of CO2 at 754 mmHg and 22 degrees Celsius were evolved. The initial sample contained .05112 grams of magnesium. What percent of the limestone by mass is MgCO3?

FREE Expert Solution

We are asked to calculate for the mass percent (mass %) of MgCO3 in 0.3028 gram sample of this limestone


To do that we’re going to use the mass percent formula shown below:

mass% MgCO3 = mass of MgCO3mass of lime stone x 100%


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Problem Details

A sample of dolomite limestone containing only CaCO3 and MgCO3 was analyzed. When a .3028 gram sample of this limestone was decomposed by heating, .082 L of CO2 at 754 mmHg and 22 degrees Celsius were evolved. The initial sample contained .05112 grams of magnesium. What percent of the limestone by mass is MgCO3?

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