Question

a solution that has a high concentration of hydrogen ions has what type of ph?

2

7

13

14

Explanation:

Step1: Understand pH scale

The pH scale ranges from 0 - 14. A lower pH means higher \(H^+\) concentration.

Step2: Analyze each option

• pH = 2: Low pH, high \(H^+\) concentration (acidic).
• pH = 7: Neutral (\([H^+]=[OH^-]\)).
• pH = 13: High pH, low \(H^+\) concentration (basic).
• pH = 14: Very high pH, very low \(H^+\) concentration (strongly basic).

Since the problem asks for high \(H^+\) concentration (acidic), pH = 2 is correct.

Answer:

2