The volume of FeCl₃ needed to make 250 mL of 0.3 M in Cl⁻ ions was 142,857 ml
Further explanation
Dilution is the process of adding solvents (generally water) which aims to obtain a solution with a concentration that is smaller than the initial concentration of a more concentrated substance.
So the principle of dilution is to get a lower / dilute concentration.
At dilution the number of dissolved moles before and after dilution is the same
The dilution formula is as follows:
[tex]\large {\boxed {\bold{M_1 \: \times \: V_1 ~ = ~ M_2 \: \times \: V_2}}[/tex]
M1 = Molarity of the solution before dilution
V1 = Volume of solution before dilution
M2 = Molarity of solution after dilution
V2 = Volume of Molarity of solution after dilution
Ionization reaction on FeCl₃
FeCl₃ -> Fe³⁺ + 3Cl⁻
For 0.175 M FeCl₃ there are 3.0,175 M Cl⁻ = 0.525 M Cl⁻
Because what is needed is a 250 ml 0.3 M Cl⁻ solution, then we use the dilution formula:
M1V1 = M2V2
0.525. V1 = 250. 0.3
V1 = 142,857 ml
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Keywords: Cl- ion, Molarity, FeCl3, solution
