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Grade: 12th pass

                        

Find the percentage purity of lime STONE CaCO3(containing some impurity) whose 5.235 gm react with 5000cc of N/5 HCl? (Impurity will not react with HCl)

4 years ago

Answers : (1)

Vikas TU
12141 Points
							
moles of CaCO3 actually would react with  HCl would be => 5000/5000 = 1 moles.
And hence,
 
weight of CaCO3  = > 1 * 100 = 100 gm. 
As CaCO3 come to be 100 gm that is more than impurity together and hence it could not be possible.
Check if the Normality or volume of HCl data is different.
 
3 years ago
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