Year 13 synoptic questions

1

Give chemical explanations for the following statements:
Bromine has a higher boiling point than chlorine.

1

Give chemical explanations for the following statements:
A carton of milk expands on freezing.

1

Give chemical explanations for the following statements:
Potassium is placed immediately after argon in the periodic table.

1

Give chemical explanations for the following statements:

The reaction of ethane with chlorine under UV radiation is a poor method for preparing a high yield of chloroethane.

1

Give chemical explanations for the following statements:
Water has a concentration of approximately 56 mol dm-3

1

Give chemical explanations for the following statements:
IR spectroscopy distinguishes ketones from carboxylic acids.

1

Give chemical explanations for the following statements:
1.323 g of N2O(g) has a volume of 1.00 dm3 at 100 kPa and 400 K.

Calculation required

You may upload to show your work.

1

Give chemical explanations for the following statements:
4.25 g of C6H5COOCH3 contains 1.88 × 1022 molecules.

Calculation required

1

Give chemical explanations for the following statements:
The rate of hydrolysis of 1-bromobutane is faster than that of 1-chlorobutane.

3

The H–O–H bond angle in ice is about 109° but about 105° in gaseous H2O.Explain why there is this difference.

(Hint - ignore responses about open lattice/tetrahedral structure in ice).

2

Methane makes up about 13.4% of the mass of ‘methane hydrate’

Determine the formula of ‘methane hydrate’, CH4•xH2O. to 2 d.p.

calculate x

1

There is no need to add the dm3

6

explain how chemical tests would allow each compound to be distinguished from the other
compounds.
Details of apparatus and quantities are not required.

4

Determine and draw a possible structure for monoprotic organic acid D based on the following information:

Hint Benzene undergoes electrophylic substitution

Give chemical explanations for the following statements:Bromine has a higher boiling point than chlorine.

Give chemical explanations for the following statements:A carton of milk expands on freezing.

Give chemical explanations for the following statements:Potassium is placed immediately after argon in the periodic table.

Give chemical explanations for the following statements:The reaction of ethane with chlorine under UV radiation is a poor method for preparing a high yield of chloroethane.

Give chemical explanations for the following statements:Water has a concentration of approximately 56 mol dm-3

Give chemical explanations for the following statements:IR spectroscopy distinguishes ketones from carboxylic acids.

Give chemical explanations for the following statements:1.323 g of N2O(g) has a volume of 1.00 dm3 at 100 kPa and 400 K.Calculation requiredYou may upload to show your work.

Give chemical explanations for the following statements:4.25 g of C6H5COOCH3 contains 1.88 × 1022 molecules.Calculation required

Give chemical explanations for the following statements:The rate of hydrolysis of 1-bromobutane is faster than that of 1-chlorobutane.

The H–O–H bond angle in ice is about 109° but about 105° in gaseous H2O.Explain why there is this difference.(Hint - ignore responses about open lattice/tetrahedral structure in ice).

Methane makes up about 13.4% of the mass of ‘methane hydrate’Determine the formula of ‘methane hydrate’, CH4•xH2O. to 2 d.p.calculate x

There is no need to add the dm3

explain how chemical tests would allow each compound to be distinguished from the other compounds.Details of apparatus and quantities are not required.

Determine and draw a possible structure for monoprotic organic acid D based on the following information:Hint Benzene undergoes electrophylic substitution

Give chemical explanations for the following statements:
Bromine has a higher boiling point than chlorine.

Give chemical explanations for the following statements:
A carton of milk expands on freezing.

Give chemical explanations for the following statements:
Potassium is placed immediately after argon in the periodic table.

Give chemical explanations for the following statements:

The reaction of ethane with chlorine under UV radiation is a poor method for preparing a high yield of chloroethane.

Give chemical explanations for the following statements:
Water has a concentration of approximately 56 mol dm-3

Give chemical explanations for the following statements:
IR spectroscopy distinguishes ketones from carboxylic acids.

Give chemical explanations for the following statements:
1.323 g of N2O(g) has a volume of 1.00 dm3 at 100 kPa and 400 K.

Calculation required

You may upload to show your work.

Give chemical explanations for the following statements:
4.25 g of C6H5COOCH3 contains 1.88 × 1022 molecules.

Calculation required

Give chemical explanations for the following statements:
The rate of hydrolysis of 1-bromobutane is faster than that of 1-chlorobutane.

The H–O–H bond angle in ice is about 109° but about 105° in gaseous H2O.Explain why there is this difference.

(Hint - ignore responses about open lattice/tetrahedral structure in ice).

Methane makes up about 13.4% of the mass of ‘methane hydrate’

Determine the formula of ‘methane hydrate’, CH4•xH2O. to 2 d.p.

calculate x

explain how chemical tests would allow each compound to be distinguished from the other
compounds.
Details of apparatus and quantities are not required.

Determine and draw a possible structure for monoprotic organic acid D based on the following information:

Hint Benzene undergoes electrophylic substitution