Revision

Which one of the following is an ampholyte?

• HBr

• HSO₃^-

• NH₄OH

• H₃O⁺

Functional group of ketones is a

• carboxyl group

• carbonyl group

• formyl group

• hydroxyl group

The substance that ionizes in water to produce H₃O⁺ ion.

• Arrhenius Acid

• Arrhenius Base

• Bronsted-Lowry Acid

• Bronsted-Lowry Bases

Which factor affects the equilibrium constant?

• Pressure

• Temperature

• Concentration

• Catalyst

Functional isomers

• methyl ethanoate & ethyl methanoate

• propyl methanoate and butanal

• ethyl ethanoate and butanoic acid

• 2-methyl-3-pentanone and 3-hexanone

6 mol of hydrogen gas is allowed to react with 5 mol of nitrogen gas at 330K to produce Ammonia. This is a reversible reaction sealed in a 5dm^-3 container. 50dm^-3 of ammonia was produced of which 1 mole occupies 25dm^-3. Calculate the Equilibrium constant of the reaction.

• 1.08

• 0.93

• 0.25

• 1.56

In a titration a 400 cm³ KOH solution with pH of 12 is allowed to react with 5g of solid HNO_3. This is according to the following balanced equation

HNO₃ + KOH = KNO₃ + H₂O

calculate the mass of the reactant in excess.

• 2.5g

• 4g

• 3.5g

• 1.5g

Write down the value of Y

If 3 moles of Iodine had reacted, What is the equilibrium constant of this reaction?

Give the IUPAC name of P