Question Detail

BIO 101 BIO 101 Past Questions Objective Question
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Question

Why must a pH meter be calibrated with standard buffer solutions prior to use?
Options
A To compensate for electrode aging and temperature variations
Correct Answer
B To clean the inner reference wire
C To sterilize the glass sensing bulb
D To convert the pH meter into an analytical balance
Correct Answer

Option A is the correct answer.

Detailed Explanation

Electrodes exhibit slight response shifts due to temperature, glass hydration, and age; standard buffers calibrate the slope.

Hint

No hint available

Question Info

Course: BIO 101
Topic: BIO 101 Past Questions
Type: Objective
Difficulty: Not specified
Question 2420 of 2556
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