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pH Measurement and Control

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Questions and Answers

Which of the following is true about pH measurement?

It is used to measure the acidity or alkalinity of a solution. (correct)

It is only used in industrial processes.

It is a modern chemical analysis method.

It is used to determine the taste of beverages.

What can be inferred about the acidity of orange juice compared to milk?

Orange juice is less acidic than milk.

Orange juice is more acidic than milk. (correct)

Orange juice and milk have the same acidity.

Orange juice has no acidity.

In which industries is the measurement and control of acidity/alkalinity levels important?

Textile and fashion industries.

Automotive and aerospace industries.

Sports and entertainment industries.

Steel, pulp and paper, chemical and pharmaceutical manufacturing industries. (correct)

What is one of the applications of pH measurement in industrial processes?

Maximizing efficiency in plating and surface treatment. Signup and view all the answers

Which statement about pH is correct?

pH is a measure of acidity or alkalinity. Signup and view all the answers

Which of the following is a limitation of pH glasses?

pH glasses are soluble in low conductivity solutions Signup and view all the answers

What is the maximum linearity error that can be expected in pH glass compositions?

0.04 pH Signup and view all the answers

What is the temperature range within which most pH electrodes can work?

-5 to 105 °C Signup and view all the answers

Which factor limits the temperature range of pH electrodes?

The reference electrode Signup and view all the answers

In which conditions can the temperature limit for pH electrodes go up to 150 °C?

In non-aqueous solutions Signup and view all the answers