Question

1. (2.5) Jamie made 2.0 liters of a 1.25 M calcium chloride solution to be used for later experiments. For those experiments how should Jamie make up 500.0 ml of a 0.025 M solution?

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Answer 1

vis, = V22 . This can be explained by v=volume S= concentration volume of for the second solution, i n V2 y soln that has to prepare later = 500 me Są= concentration in 20.025 (m) Vi= volume that have to take from prepared solution earlier. (we have to calculate) Si=1:25 (m) :: Vi x1.25 = 500X0.023 , Spot or, vi= 50000.025 = nome 1:25 : To prepare pare 500 ml 0.025(m) solution take 10 me 1:25 (m) previous solution and then add (500-10) = 490 ml solvent (water).