Question

A 24% acid solution is mixed with a 14% acid solution to form a 19% acid solution. How many liters of the 24% acid solution are used to make 10 liters of the 19% acid solution?

Answer 1

Answer: 5 Liters

Step-by-step explanation:

According to the dilution law,

`M_1V_1+M_2V_2=M_3V_3`

where,

`M_1` = concentration of first solution = 24%

`V_1` = volume of first solution = x L

`M_2` = concentration of second solution = 14%

`V_2` = volume of second solution = (10-x) L

`M_3` = concentration of final solution = 19%

`V_2` = volume of final solution = 10 L

Putting i the values, we get:

`24* x+14* (10-x)=19* 10`

`x=5L`

Therefore, 5 Liters of the 24% acid solution are used to make 10 liters of the 19% acid solution.