Module 6 Acids Revision

NH₃ + H₂O → NH₄⁺ + OH^-

NH₃ is a Bronsted Lowry

• Acid

• Base

• conjugate acid

• conjugate base

What is the pH of a reaction between a strong acid and strong base?

• 0

• 5

• 10

• 7

HNO₃ + H₂O → H₃O⁺ + NO₃^1-

NO₃^1- is the conjugate base of

• H₂O

• H₃O⁺

• HNO₃

• none of the above

HC₂H₃O₂ + H₂O → H₃O⁺ + C₂H₃O₂^1-

HC₂H₃O₂ is acting as

• a conjugate base

• a Bronsted Lowry base

• a Bronsted Lowry acid

• none of the above

Which of the following values would represent the pH of a strong base?

• 13

• 8

• 7

• 2

What does pH measure?

• strength of an acid

• concentration of H+ ions

• strength of both acids and bases

• strength of a base

A neutralisation reaction produces

• Salt and water

• A neutral substance

• an acid

• Only water

What type of reaction is the following:

HCl + Zn --> ZnCl₂ + H₂

• Neutralisation

• Acid and a metal

• Acid and a carbonate

• Ionic

What is the endpoint of a titration

• At the end

• Where the amount of acid and base are balanced according to the equation

• Where there is no base

• Where the line is bending

I am titrating 1M HCl with 1M NaOH. I have 25mL of HCl. How much NaOH will I need?

• 2.5mL

• 5mL

• 25mL

• 50mL