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Water Hardness Factors Quiz

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Questions and Answers

What contributes to the hardness of water due to the formation of gypsum?

Dissolved calcium sulfate (correct)

Dissolved CO2

Dissolved oxygen

Dissolved magnesium

Which factor leads to the formation of metal oxides or metal sulfides, contributing to water hardness?

Dissolved oxygen (correct)

Dissolved calcium sulfate

Dissolved magnesium

Dissolved CO2

What is responsible for reducing the pH of water and increasing its acidity?

Dissolved CO2 (correct)

Dissolved calcium sulfate

Dissolved magnesium

Dissolved oxygen

Which dissolved mineral is insoluble in water and contributes to water hardness?

Calcium sulfate Signup and view all the answers

What is a result of the hydration process of dissolved calcium sulfate?

Formation of gypsum Signup and view all the answers

What is the formula for calculating the equivalent of calcium carbonate for measuring water hardness?

Equivalent of CaCO3 = Chemical equivalent of calcium carbonate / Chemical equivalent of hardness producing substance Signup and view all the answers

Which unit represents the weight of a solution per million units of weight of the solution?

Parts per million (ppm) Signup and view all the answers

What does milligram per liter (mg/L) represent in the context of water hardness measurement?

Amount of calcium carbonate and other salts present per liter of solution Signup and view all the answers

What is the common method for calculating hardness by measuring the hardness of water?

Measuring the hardness of water Signup and view all the answers

What does the chemical equivalent of hardness producing substance represent in the formula for calculating the equivalent of calcium carbonate?

The equivalent weight of the substance responsible for water hardness Signup and view all the answers

Water Hardness Factors Quiz

Choose a study mode

Podcast

Questions and Answers

What contributes to the hardness of water due to the formation of gypsum?

Which factor leads to the formation of metal oxides or metal sulfides, contributing to water hardness?

What is responsible for reducing the pH of water and increasing its acidity?

Which dissolved mineral is insoluble in water and contributes to water hardness?

What is a result of the hydration process of dissolved calcium sulfate?

What is the formula for calculating the equivalent of calcium carbonate for measuring water hardness?

Which unit represents the weight of a solution per million units of weight of the solution?

What does milligram per liter (mg/L) represent in the context of water hardness measurement?

What is the common method for calculating hardness by measuring the hardness of water?

What does the chemical equivalent of hardness producing substance represent in the formula for calculating the equivalent of calcium carbonate?

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