Answer :
Answer:
137.18mL
Explanations:
To get the required volume, we will use the dilution formula expressed as:
[tex]C_1V_1=C_2V_2_{}[/tex]C1 and C2 are the concentration of the solution
V1 and V2 are the corresponding volumes
Given the following parameters:
[tex]\begin{gathered} C_1=4.24M \\ C_2=0.705M \\ V_2=825mL \\ V_1=\text{?} \end{gathered}[/tex]Substitute the given parameters into the formula:
[tex]\begin{gathered} V_1=\frac{C_2V_2}{C_1} \\ V_1=\frac{0.705\cancel{M}\times825mL}{4.24\cancel{M}} \\ V_1=\frac{581.625mL}{4.24} \\ V_1=137.18mL \end{gathered}[/tex]Hence the required volume of KCL that must be diluted to make 825 milliliters of a 0.705 M KCl solution is 137.18mL