Answer / murli

there is imp to know the which conc sol u need and which is
conc of high conc sol .you are using formula
c1v1=c2v2
if c1-100ppm
v2-100ml
c2-10ppm
vi-?
v1=c2.v2/c1
you get vol .diluted to 100ml having conc 10 ppm

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