[C] Making Salts Flashcards
What is the purpose of the AQA GCSE making salts required practical?
To investigate the preparation of salts through a chemical reaction.
What is the first step in making a salt from a metal oxide and an acid?
Mix the metal oxide with the acid.
True or False: Salts can only be made from acids and metal oxides.
False.
Fill in the blank: The process of making salts often involves _____ and _____ reactions.
neutralization; precipitation
What is the chemical reaction that occurs when an acid reacts with a base?
Neutralization.
What equipment is typically used to heat the acid during the salt preparation process?
Bunsen burner.
Which type of acid is commonly used in making salts in the AQA practical?
Hydrochloric acid.
What is the expected result when an acid reacts with a carbonate?
A salt, water, and carbon dioxide are produced.
What is the name of the salt produced when hydrochloric acid reacts with sodium hydroxide?
Sodium chloride.
Multiple choice: What is added to an acid to produce a salt?
Base, carbonate, or metal.
What is the role of the indicator in making salts?
To show when the reaction is complete.
True or False: All salts are soluble in water.
False.
What is the method called when you filter the solution to separate the salt from the liquid?
Filtration.
Fill in the blank: The salt solution is often _____ to obtain solid salt crystals.
evaporated
What is the formula for calculating the amount of acid needed to make a specific salt?
Use stoichiometry based on the balanced chemical equation.
What safety equipment should be worn during the making salts practical?
Goggles and gloves.
What type of reaction occurs when an acid reacts with a metal?
Single displacement reaction.
True or False: The residue left after filtration is the salt.
False.
What is the purpose of evaporating the solution in the salt-making process?
To crystallize the salt.
Fill in the blank: The final step in the salt preparation is _____ the crystals.
drying
What type of salts are formed from strong acids and strong bases?
Neutral salts.
Which equipment is used to measure the volume of acid accurately?
Graduated pipette or burette.
What is the main observation when an acid reacts with a carbonate?
Bubbles of carbon dioxide gas are produced.
Multiple choice: Which of the following is NOT a method of making salts?
Combustion.
What is the term for the solution that contains dissolved salts?
Salt solution or brine.
True or False: All salts have the same properties.
False.
What is one way to test the purity of the salt produced?
Check its melting point.
