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\"In a decomposition process, 2.40 g of impure CaCO3 (CaCO3 mixed with other substances that remain...

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Chemistry

\"In a decomposition process, 2.40 g of impure CaCO3 (CaCO3 mixedwith other substances that remain as residue) was decomposed athigh temperature and a total pressure of 960.0 torr.

2.00 L CO2 gas was collected over water at 25.0 C. The WaterVapor Pressure is 26.0 torr at 25.0 C. Find Percent by mass of thepure CaCO3\"

Thank you!

Answer & Explanation Solved by verified expert
3.6 Ratings (551 Votes)
Calculation of number of moles of CO2 We know that ideal gas equation is PV nRT Where T Temperature 25oC 25273 298K P pressure total pressure vapor pressure of    See Answer
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