Fill in the blanks by using the correct word/term given in the brackets.
The pH of a neutral solution is _____ at 298 K. (zero/7)

Explanation

To fill in the blank in the statement "The pH of a neutral solution is _____ at 298 K," we need to understand the concept of pH and its relation to neutral solutions.

### Step-by-Step Solution:

1. **Understanding pH**: pH is a measure of the hydrogen ion concentration in a solution. It is measured on a scale from 0 to 14.

2. **Neutral Solution**: A neutral solution is one where the concentration of hydrogen ions (H⁺) is equal to the concentration of hydroxide ions (OH⁻).

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