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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Describe how salts are used in the textile industry.
Describe one industrial use of sodium carbonate (washing soda).
Describe the environmental impact of excessive use of salts in agriculture.
Describe the role of salts in agriculture.
A water sample contains 0.1 mol of calcium ions (Ca2+) and 0.2 mol of chloride ions (Cl-). Calculate the maximum amount of calcium chloride (CaCl2) that can be formed from this sample.
A chemical company needs to produce 500 g of sodium sulfate (Na2SO4) for use in the manufacture of detergents. Calculate the number of moles of sodium sulfate required. (Molar mass of Na2SO4 = 142 g/mol)
A solution contains 0.5 mol of sodium ions and 0.5 mol of carbonate ions. What mass of sodium carbonate (Na2CO3) can be formed from this solution? (Molar mass of Na2CO3 = 106 g/mol)
A chemical plant produces potassium sulfate (K2SO4) for use as a fertilizer. If the plant produces 1,740 kg of potassium sulfate in a day, how many moles of K2SO4 does it produce? (Molar mass of K2SO4 = 174 g/mol)
Which of the following is a common salt used in food? (1) Sodium chloride (2) Potassium nitrate (3) Calcium carbonate (4) Magnesium sulfate
Which of the following is a double salt? (1) Potassium nitrate (2) Sodium chloride (3) Mohr's salt (4) Calcium carbonate
Which of the following is NOT a property of salts? (1) They are usually crystalline solids (2) They always taste sweet (3) They can conduct electricity when dissolved in water (4) They are formed from acid-base reactions
Which of the following is NOT a use of salts in daily life? (1) Preserving food (2) Making explosives (3) Coloring fabrics (4) Generating electricity directly
Fill in the blank: The chemical formula for table salt is __________.
Fill in the blank: The process of obtaining common salt from seawater is called __________.
Fill in the blank: The salt commonly used in fireworks to produce a red color is __________.
Fill in the blank: The salt used in making bleaching powder is __________.
True or False: Potassium nitrate is used in fertilizers.
True or False: Salts are always soluble in water.
True or False: Salts are formed by the neutralization reaction between an acid and a base.
True or False: Salts are only used in the food industry.
