The concentration of each solution is 0.007625 M, 0.0003813 M, 0.00001906 M.
For first solution
Initial concentration = n1 = 0.1525 M
Volume taken = v1 = 5 ml
Final concentration = n2 = ?
Final volume = v2 = 100 ml
We know,
n1 v1 = n2 v2
n2 = n1v1/ v2 = ( 0.1525 M × 5ml) / 100 ml
n2 = 0.007625 M
Concentration of first solution = 0.007625 M
For 2nd solution
Initial concentration = n1 = 0.007625 M
Volume taken = v2 = 5 ml
Final concentration = n2 = ?
Final volume = v2 = 100 ml
We know,
n1 v1 = n2 v2
n2 = n1v1/ v2 = ( 0. 007625 M × 5ml) / 100 ml
n2 = 0.0003813 M
Concentration of second solution = 0.0003813 M
Fir third solution
Initial concentration = n1 = 0.0003813 M
Volume taken = v1 = 5 ml
Final concentration = n2 = ?
Final volume = v2 = 100 ml
We know,
n1 v1 = n2 v2
n2 = n1v1/ v2 = ( 0.0003813 M × 5ml) / 100 ml
n2 = 0.00001906 M
Concentration of first solution = 0.00001906 M
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