SolutionHard
Question
A solution of Na2S2O3 is standardized iodometrically against 0.167 g of KBrO3 where BrO3- changesto Br-. This process requires 45 mL of the Na2S2O3 solution. What is the strength of the Na2S2O3 ?
[Mw. of KBrO3 = 167]
[Mw. of KBrO3 = 167]
Options
A.
N
NB.
N
NC.
N
ND.
N
NSolution
Eq. of Na2S2O3 ⇒ Eq. of KBrO3
N × 45 =
× 6 × 1000
N =
M =
N × 45 =
× 6 × 1000N =
M =
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