Mole ConceptMedium
Question
A mixture of NaI and NaCl on reaction with H2SO4 gave Na2SO4 equal to the weight of original mixture taken. The percentage of NaI in the mixture is (I = 127)
Options
A.82.86
B.26.38
C.62.38
D.28.86
Solution
2NaI → Na2SO4
2 × 150 g 142 g
2NaCl → Na2SO4
2 × 58.5 g 142 g
From the question,
Hence, the percentage of NaI in the mixture = 28.86%
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