Answer: 5 Liters
Explanation:
According to the dilution law,
[tex]M_1V_1+M_2V_2=M_3V_3[/tex]
where,
[tex]M_1[/tex] = concentration of first solution = 24%
[tex]V_1[/tex] = volume of first solution = x L
[tex]M_2[/tex] = concentration of second solution = 14%
[tex]V_2[/tex] = volume of second solution = (10-x) L
[tex]M_3[/tex] = concentration of final solution = 19%
[tex]V_2[/tex] = volume of final solution = 10 L
Putting i the values, we get:
[tex]24\times x+14\times (10-x)=19\times 10[/tex]
[tex]x=5L[/tex]
Therefore, 5 Liters of the 24% acid solution are used to make 10 liters of the 19% acid solution.
