Salts and Their Role in Industry and Daily Life
Chemistry ⇒ Acids, Bases, and Salts
Salts and Their Role in Industry and Daily Life starts at 9 and continues till grade 12.
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A factory uses sodium carbonate to soften water for industrial processes. Explain how sodium carbonate softens hard water.
A patient is given an intravenous saline solution. Explain why saline, rather than pure water, is used for this purpose.
A water treatment plant uses alum to purify water. What is the chemical formula of alum commonly used for this purpose?
Describe how salts are used in the preservation of food.
Describe the process by which common salt is obtained from seawater.
Describe the role of salts in the manufacture of soap.
Describe the role of salts in the textile industry.
Explain the environmental impact of excessive use of fertilizers containing salts such as ammonium nitrate.
Explain the importance of salt bridges in electrochemical cells.
Explain the role of salts in maintaining the pH of soil for agriculture.
Explain the role of salts in the regulation of blood pressure in the human body.
Explain why salts are added to detergents used in washing clothes.
Explain why silver nitrate is used in photography.
Explain why some salts are colored while others are white.
Explain why table salt is often iodized for human consumption.
State one industrial use of calcium carbonate.
State one reason why salts are important in the human body.
A chemical plant produces 500 kg of calcium chloride (CaCl2) daily as a byproduct. If the molar mass of CaCl2 is 111 g/mol, calculate the number of moles of CaCl2 produced per day.
A solution contains 0.2 mol of sodium chloride and 0.1 mol of potassium nitrate in 1 L of water. Calculate the total number of ions present in the solution, assuming complete dissociation.
Describe the process and chemical reactions involved in the industrial production of sodium hydroxide using brine and the role of salts in this process.
