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Grade: 12th pass
        
50ml of a solution containing 0.01mole each Na2CO3,NaHCO3 and NaOH was titrated with N-HCL.What will be reading if only Ph is used as indicator
4 months ago

Answers : (1)

Arun
22984 Points
							
 
first you need to do is 
equate the molarity or mole  equivalents of all the compounds present there,
Mequivalent of HCL =M equivalent of NaOH + M eqiuvalent of Na2CO3
                               =M equivalent of NaOH + M equivalent of NaHCO3
==> 1XV    = 1/40X 1000  + 1/106X 1000
                  =34ml
if you only phenophthalien indicator you will get the answer as 34ml
if you use methyl orange as an indicator you will get 55.77ml
4 months ago
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