Question

Suppose that a chemist is mixing two acid​ solutions, one of 20​% concentration and the other of 30​% concentration. Which of the following concentrations could not be​ obtained?
1. 22​%,
2. 24​%,
3. 28​%,
4. 34​%

Answer 1

Answer:

4. 34%

Step-by-step explanation:

By mixing 20% and 30%, it will be between 20 and 30, like 22, 24 or 28. You would need a higher concentration than 30 to mix in to get 34%.