17 Questions
What is the role of acids in terms of proton transfer?
H+ ion producers
Which type of acids ionize completely in water?
Strong acids
What do bases (alkalis) do in terms of proton transfer?
Proton acceptors
Which of the following is a characteristic of strong bases?
Produce solutions of very high pH
Which type of acids produce solutions with pH values closer to the middle of the pH scale?
Weak acids
In the transfer of protons, what do weak bases produce when they ionize in solution?
OH- ions
In basic conditions, what color does red litmus paper turn?
Blue
What type of reaction occurs when an acid and a base react together?
Neutralisation reaction
Which ion is responsible for making an aqueous solution of a base an alkali?
Hydroxide ions (OH-)
What is produced when an alkali reacts with an ammonium salt?
Salt, water, and ammonia
Which of the following is a characteristic property of bases?
Neutralizing acids to form salts and water
What happens to litmus paper in basic conditions?
It turns blue
In an equilibrium setup between molecules and ions in a solution of a weak acid or base, which direction does the equilibrium lie?
To the left, with a higher concentration of intact molecules
What characterizes a concentrated solution of an acid or base?
High number of acid or base molecules per dm^3
Which acid is considered weak based on the given examples?
Propanoic acid
What happens to the equilibrium position if a weak base solution is diluted?
Shifts to the left, increasing intact base molecules
Why can a dilute solution of HCl be more acidic than a concentrated solution of ethanoic acid?
Ethanoic acid does not dissociate completely in solution
Explore the concept of proton transfer in acids and bases, understanding how they interact with protons and influence the acidity of solutions. Learn about proton donors, H+ ions, and the characteristics of weak and strong acids and bases.
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