Consider an impure sample of 25.20% Na2CO3.  How many grams of the sample must be dissolved in a 500-mL solution so that titration of a 50-mL aliquot portion will require only about 22.0 mL of 0.1250 M HCl to reach the methyl orange end point?  MM Na2CO3 = 105.99 MM HCl = 36.46 Below is the balance chemical equation for the titration of sodium carbonate with hydrochloric acid.

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Consider an impure sample of 25.20% Na2CO3.  How many grams of the sample must be dissolved in a 500-mL solution so that titration of a 50-mL aliquot portion will require only about 22.0 mL of 0.1250 M HCl to reach the methyl orange end point? 

MM Na2CO3 = 105.99

MM HCl = 36.46

Below is the balance chemical equation for the titration of sodium carbonate with hydrochloric acid. 

Na,CO3
+ 2HCI
2NaCl + H,O
CO2
+
Transcribed Image Text:Na,CO3 + 2HCI 2NaCl + H,O CO2 +
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