-
Muzamil Shah , muzamilstudy2468@gmail.com , 105 Holmrook Road, , Preston, England, United Kingdom, PR1 6ST
Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
AS
CHEMISTRY
Paper 1 Inorganic and Physical Chemistry
Tuesday 16 May 2023 Morning Time allowed: 1 hour 30 minutes
Materials
For this paper you must have: For Examiner’s Use
• the Periodic Table/Data Sheet, provided as an insert (enclosed)
• a ruler with millimetre measurements Question Mark
• a scientific calculator, which you are expected to use where appropriate. 1
2
Instructions
3
• Use black ink or black ball-point pen.
• Fill in the boxes at the top of this page. 4
• Answer all questions. 5
• You must answer the questions in the spaces provided. Do not write outside 6
the box around each page or on blank pages.
7
• If you need extra space for your answer(s), use the lined pages at the end of
this book. Write the question number against your answer(s). 8
• All working must be shown. Section B
• Do all rough work in this book. Cross through any work you do not
want to be marked. TOTAL
Information
• The marks for questions are shown in brackets.
• The maximum mark for this paper is 80.
Advice
You are advised to spend about 65 minutes on Section A and 25 minutes on Section B.
*JUN237404101*
IB/M/Jun23/E7 7404/1
,-
Muzamil Shah , muzamilstudy2468@gmail.com , 105 Holmrook Road, , Preston, England, United Kingdom, PR1 6ST
2
Do not write
outside the
Section A box
Answer all questions in this section.
0 1 This question is about the elements in Period 3.
0 1 . 1 Give the full electron configuration of the element in Period 3 with the highest
first ionisation energy.
[1 mark]
0 1 . 2 Give an equation, including state symbols, to represent the process that occurs when
the second ionisation energy of sodium is measured.
[1 mark]
0 1 . 3 Table 1 shows some successive ionisation energies for an element in Period 3.
,-
Muzamil Shah , muzamilstudy2468@gmail.com , 105 Holmrook Road, , Preston, England, United Kingdom, PR1 6ST
3
Do not write
outside the
0 2 This question is about the elements in Group 2. box
0 2 . 1 Describe the structure and bonding in magnesium.
[2 marks]
0 2 . 2 State the trend in the atomic radius of the elements down Group 2 from Mg to Ba
Give a reason for this trend.
[2 marks]
Trend
Reason
0 2 . 3 Give an equation, including state symbols, for the reaction of magnesium with steam.
State two observations for this reaction.
[3 marks]
Equation
Observation 1
Observation 2
Question 2 continues on the next page
Turn over ►
*03*
IB/M/Jun23/7404/1
, - Muzamil Shah , muzamilstudy2468@gmail.com , 105 Holmrook Road, , Preston, England, United Kingdom, PR1 6ST
4
Do not write
outside the
0 2 . 4 The sulfates of the elements in Group 2 from Mg to Ba have different solubilities. box
State the formula of the least soluble of these sulfates.
Give a use for this sulfate.
[2 marks]
Formula
Use
0 2 . 5 A sample of strontium is made up of only three isotopes: 86Sr, 87Sr and 88Sr
This sample contains 83.00% by mass of 88Sr
This sample of strontium has Ar = 87.73
Calculate the percentage abundance of each of the other two isotopes in this sample.
[4 marks]
% abundance 87Sr =
% abundance 86Sr =
*04*
IB/M/Jun23/7404/1
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller MRPDF023. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.78. You're not tied to anything after your purchase.
