0.8102 g sample of impure Al2(CO3)3 (MM= 234 g/mol) decomposed with HCl; the liberated CO2 was collected on calcium oxide (CaO, MM = 56 g/mol) and precipitated as CaCO3 (MM =100 g/mol). The precipitated was weigh to 0.0515 g. Calculate the percent of aluminium (atomic mass = 27 amu) in the sample. (Express answer in proper significant figures and do not include units.)
0.8102 g sample of impure Al2(CO3)3 (MM= 234 g/mol) decomposed with HCl; the liberated CO2 was collected on calcium oxide (CaO, MM = 56 g/mol) and precipitated as CaCO3 (MM =100 g/mol). The precipitated was weigh to 0.0515 g. Calculate the percent of aluminium (atomic mass = 27 amu) in the sample. (Express answer in proper significant figures and do not include units.)
Chemistry by OpenStax (2015-05-04)
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ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
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Chapter19: Transition Metals And Coordination Chemistry
Section: Chapter Questions
Problem 14E: A 2.5624-g sample of a pure solid alkali metal chloride is dissolved in water and treated with...
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A 0.8102 g sample of impure Al2(CO3)3 (MM= 234 g/mol) decomposed with HCl; the liberated CO2 was collected on calcium oxide (CaO, MM = 56 g/mol) and precipitated as CaCO3 (MM =100 g/mol). The precipitated was weigh to 0.0515 g. Calculate the percent of aluminium (
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