40 ml of 0.05M sesqui carbonate is titrated against 0.05MHCL . xml of hcl is used when phenophthelene is the indicator and y ml HCLis used when methyl orange is used as an indicator in two separate titrations.Hence y-x is equal to
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2 Answers
1sodium sesqui carbonate is a double salt of sodium carbonate and sod bicarbonate -> Na2CO3.NaHCO3
with phenolthalein,
Na2CO3.NaHCO3 -----changes to-------------->> NaHCO3.NaHCO3
N FACTOR =1
x= 40 ml
with meth orange,
Na2CO3.NaHCO3 -----changes to-------------->> 3 H2CO3
N FACTOR =3
y =120 ml
so i think ans shud be 80 ml.
