Question

1 gram sample containing Na2C2O4 is titrated with 40 ml volumeof 0.02M k2Cr2O4 in acidic medium then weight percentage of Na2C2O4 in sample?

pls answer ​quickly​

Answer 1

Answer:

sic fb ng gf KO

Explanation:

7854(&(%(4&(&)3)%)%(%(%((%4++4%++4%+

Answer 2

Answer:26.8%

Explanation:let weight of na2c2o4 in sample be x grams

Eq of na2c2o4=Eq of kmno4

N×nf =M×nf×v

X×2/134=2×5×40/100×1000

X=0.268

W%= 0.268×100/1

=26.8%