Answer:- 0.125 L or 125 mL
Solution:-
since we know that by dilution law
N1V1 = N2V 2
it is given that
N2 = 3.00 M
V2 = ???
V1 =0.300 L
N1 = 1.25M
V2 = N1V1 / N2
V2 = 1.25 * 0.300 / 3.00
V2 = 0.125 L or 125 mL
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