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ADNAN MUHAMMED

Grade 12,

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what is the chemical difference between Na 2 CO 3 & NaHCO 3 ?

what is the chemical difference between Na2CO3 & NaHCO3?

Grade:12

1 Answers

Umakant biswal
5349 Points
7 years ago
dear ankur
Na2CO3 is a strongly basic salt, while NaHCO3 is a weakly basic salt
One easy way to distinguish between them is to make a solution of each one and test their pH. The NaHCO3 will be about pH = 8. The Na2CO3 will show a pH of about 11 - 12
Another easy way is to heat the two compounds. NaHCO3 will decompose at a relatively low temperature yielding CO2(g) and H2O(g). The H2O will condense on a cool surface and can be identified that way. Na2CO3 requires much more heat to decompose and will only give off CO2(g).
hope it clears 
regards 
 

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