Question

how much K2 cr2 O7 molecular mass 294.19 is required to prepare 1 litre solution of 0.1 N K2 cr2 O7​

Answer 1

Answer:

hii!

here is ur answer

molarity= no of moles/ volume in litres

normality = no of gram equivalents/ volume in litres

no of gram equivalents = weight/ gram equivalent weight

gram equivalent weight of k2Cr2O7 is 49

so 0.1= weight/49×1

weight = 4.9