Answer:
The answer to your question is 60 ml of solution 5% and 40 ml of solution 10 %
Explanation:
Data
acetic acid = 5% = concentration 1
acetic acid 2 = 10% = concentration 2
final solution = 7 % =
final volume = 100 ml
Process
1.- Write an equation of the process
x = volume of solution 5%
100 - x = volume of solution 10%
Final concentration x final volume = concentration 1 x volume 1 + concentration 2 x volume 2
0.07(100) = 0.05x + 0.10(100 - x)
2.- Solve for x
7 = 0.05x + 10 - 0.1x
7 - 10 = 0.05 - 0.1 x
- 3 = -0.05 x
x = -3/-0.05
x = 60 ml of solution 5%
3.- Calculate the volume of solution 10%
Volume of 10% = 100 - 60
Volume of 10% = 40 ml
