1.
State what is meant by relative atomic mass. [1]
JD SCIENCE
Physical chemistry 1 — atomic structure, amount and bonding
Answer all questions. Show working. Answers are in a separate file on the Worksheets page — do not look at them until you have finished.
2.
State what is meant by the ideal gas equation. [1]
3.
State what is meant by empirical formula. [1]
4.
State what is meant by a mole. [1]
5.
State what is meant by ionic bonding. [1]
6.
State what is meant by covalent bonding. [1]
7.
State what is meant by electronegativity. [1]
8.
State what is meant by metallic bonding. [1]
9.
State what is meant by a mass spectrum. [1]
10.
State what is meant by electron pair repulsion. [1]
11.
Amira is asked about relative atomic mass in a AQA Chemistry paper.
(a) Describe relative atomic mass. [2]
(b) Explain why relative atomic mass is important in this topic. [3]
12.
Amira is asked about the ideal gas equation in a AQA Chemistry paper.
(a) Describe the ideal gas equation. [2]
(b) Explain why the ideal gas equation is important in this topic. [3]
13.
Amira is asked about empirical formula in a AQA Chemistry paper.
(a) Describe empirical formula. [2]
(b) Explain why empirical formula is important in this topic. [3]
14.
Amira is asked about a mole in a AQA Chemistry paper.
(a) Describe a mole. [2]
(b) Explain why a mole is important in this topic. [3]
15.
Amira is asked about ionic bonding in a AQA Chemistry paper.
(a) Describe ionic bonding. [2]
(b) Explain why ionic bonding is important in this topic. [3]
16.
Amira is asked about covalent bonding in a AQA Chemistry paper.
(a) Describe covalent bonding. [2]
(b) Explain why covalent bonding is important in this topic. [3]
17.
n in 8.0 g NaOH (M=40) [3]
18.
c if 0.025 mol in 250 cm³ [3]
19.
pV=nRT: n=1, T=300, p=100 kPa. V [3]
20.
% of C in C₂H₆ (M=30) [3]
21.
Mr from 12% of a 2+ ion at m/z 24. Actual Mr of atom [3]
22.
Bond angle in CH₄ [3]
23.
Amira carries out a AQA-style required practical linked to atomic structure, amount of substance and bonding. This is a typical AQA required-practical style question.
(a) Identify the independent variable and the dependent variable. [2]
(b) State one control variable and explain why it must be controlled. [2]
(c) Suggest one improvement or source of error and how it affects the result. [2]
24.
Amira carries out collecting valid data for atomic structure, amount of substance and bonding. This is a typical AQA required-practical style question.
(a) Identify the independent variable and the dependent variable. [2]
(b) State one control variable and explain why it must be controlled. [2]
(c) Suggest one improvement or source of error and how it affects the result. [2]
25.
Amira carries out drawing a graph for atomic structure, amount of substance and bonding. This is a typical AQA required-practical style question.
(a) Identify the independent variable and the dependent variable. [2]
(b) State one control variable and explain why it must be controlled. [2]
(c) Suggest one improvement or source of error and how it affects the result. [2]
26.
Amira carries out evaluating a method about atomic structure, amount of substance and bonding. This is a typical AQA required-practical style question.
(a) Identify the independent variable and the dependent variable. [2]
(b) State one control variable and explain why it must be controlled. [2]
(c) Suggest one improvement or source of error and how it affects the result. [2]
27.
Compare relative atomic mass with the ideal gas equation. [4]
28.
Compare the ideal gas equation with empirical formula. [4]
29.
Compare empirical formula with a mole. [4]
30.
Compare a mole with ionic bonding. [4]
31.
Apply your knowledge of electronegativity to this situation: polar bonds if different [3]
32.
Apply your knowledge of metallic bonding to this situation: malleable, conduct [3]