AQA AS Chemistry Paper 1 Inorganic and Physical Chemistry Questions and
Answers
2CuO + C -> 2Cu + CO2
Calculate percentage atom economy for the production of Cu - ✔✔✔-2Cu = 127
CO2 = 44
127/127+44 * 100 = 74.3%
30 cm3 of xenon mixed with 20 cm3 of fluorine
Xe(g) + F2(g) -> XeF2(g)
What is the final volume of gas?
50cm3
40cm3
30cm3
20cm3 - ✔✔✔-30 cm3
A student is required to make up 250cm3 of an aqueous solution that contains a known mass of
MHCO3. The student is provided with a sample bottle containing the MHCO3.
Describe the method including apparatus and practical details that the student should use to
prepare the solution. 6 marks - ✔✔✔-- weigh sample bottle containing solid on a balance
- Transfer to volumetric flask and reweigh sample bottle
- record difference in mass
- add distilled water
, AQA AS Chemistry Paper 1 Inorganic and Physical Chemistry Questions and
Answers
- stir with glass rod
- rinse all remaining solid from sample bottle into flask
- transfer to volumetric flask with 250 cm3 mark
- with washing make up to 250 cm3
- shake
Deduce the formula of the compound that contains 2+ ions and 3- ions that both have the same
electron configuration as argon - ✔✔✔-CaP
Deduce the formula of the ion that has a charge 2+ with the same electron - ✔✔✔-Sr2+
Deduce which of Na+ and Mg2+ is the smaller ion 2 marks - ✔✔✔-Mg 2+
Both have the same number of shielding however Mg2+ has more protons so higher nuclear
charge and so stronger attraction between out electrons and nucleus so smaller atomic radius
Explain how ions are accelerated, detected and have their abundance determined in the time of
flight (TOF) mass spectrometer - ✔✔✔-Ions accelerated by electric field
Ions hit the detector gains an electric and forming a current
Abundance detected by size of current
Explain how permanent dipole-dipole forces arise between hydrogen chloride molecules 2
marks - ✔✔✔-- difference in electronegativity between hydrogen and chlorine which leads to
bond polarity
- partially positive (delta) and partially negative end of molecule which attracts (delta)+ and
(delta)- end of another molecule
Answers
2CuO + C -> 2Cu + CO2
Calculate percentage atom economy for the production of Cu - ✔✔✔-2Cu = 127
CO2 = 44
127/127+44 * 100 = 74.3%
30 cm3 of xenon mixed with 20 cm3 of fluorine
Xe(g) + F2(g) -> XeF2(g)
What is the final volume of gas?
50cm3
40cm3
30cm3
20cm3 - ✔✔✔-30 cm3
A student is required to make up 250cm3 of an aqueous solution that contains a known mass of
MHCO3. The student is provided with a sample bottle containing the MHCO3.
Describe the method including apparatus and practical details that the student should use to
prepare the solution. 6 marks - ✔✔✔-- weigh sample bottle containing solid on a balance
- Transfer to volumetric flask and reweigh sample bottle
- record difference in mass
- add distilled water
, AQA AS Chemistry Paper 1 Inorganic and Physical Chemistry Questions and
Answers
- stir with glass rod
- rinse all remaining solid from sample bottle into flask
- transfer to volumetric flask with 250 cm3 mark
- with washing make up to 250 cm3
- shake
Deduce the formula of the compound that contains 2+ ions and 3- ions that both have the same
electron configuration as argon - ✔✔✔-CaP
Deduce the formula of the ion that has a charge 2+ with the same electron - ✔✔✔-Sr2+
Deduce which of Na+ and Mg2+ is the smaller ion 2 marks - ✔✔✔-Mg 2+
Both have the same number of shielding however Mg2+ has more protons so higher nuclear
charge and so stronger attraction between out electrons and nucleus so smaller atomic radius
Explain how ions are accelerated, detected and have their abundance determined in the time of
flight (TOF) mass spectrometer - ✔✔✔-Ions accelerated by electric field
Ions hit the detector gains an electric and forming a current
Abundance detected by size of current
Explain how permanent dipole-dipole forces arise between hydrogen chloride molecules 2
marks - ✔✔✔-- difference in electronegativity between hydrogen and chlorine which leads to
bond polarity
- partially positive (delta) and partially negative end of molecule which attracts (delta)+ and
(delta)- end of another molecule
