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Completed SAQ for planning a practical investigation (chemistry)
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This document contains a completed and marked SAQ document for planning a practical investigation (chemistry)

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  • September 11, 2024
  • 7
  • 2022/2023
  • Other
  • Unknown

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DistanceLearningCentre.com
STUDENT ASSESSMENT SAQ SHEET
SUBJECT: Chemistry

UNIT: Research

TOPIC: Planning a Practical Investigation

LEVEL: 3

YOUR NAME:


How to use this document
You will use this document to record your answers to the Self Assessment Questions
(SAQs) in the topic you have just studied.

You should complete the table in Part 1, and the comment box in Part 2. You may add or
delete rows as appropriate when you are completing the table in Part 1.

Once completed, please upload an electronic copy of this document at your Learner
Account (for marking, and to be checked for plagiarism). Please notify your tutor by email
when you have uploaded this document at your Learner Account.

Your tutor will then provide the Answers to SAQs for you to mark your answers, using this
sheet.

Once you have completed and marked all of the SAQ answers for the topics in a particular
unit, your tutor will provide the deadline for your assessment.




© DistanceLearningCentre.com, 2022 1

, STUDENT ASSESSMENT SAQ SHEET



PART 1: SAQ answers
Fill in the following table by writing your answer to each of the Self-Assessment Questions,
in your own words.
When you have completed all of the SAQs in the topic, mark your work using the exemplar
SAQ answers that your tutor will provide.
Before you send your tutor your SAQ answers, please complete Part 2: Comments.

Mark your
answer by
SAQ Questions and Answers deleting
the tick or
the cross

SAQ 1 Question:
Try to think of a rationale for each of the following questions:
a) Would a large antacid tablet have a faster or slower effect
on neutralising stomach acid than two smaller tablets?
b) Can pure aspirin be produced in a college laboratory?

Your answer:

a) Larger tablets may have a greater effect on neutralising
stomach acid, but smaller tablets may have a quicker
effect on neutralising stomach acid so it would need to
be discovered which size tablet is effective for both
speed and effectiveness. If a larger one is more
effective, the producers could sell fewer tablets.
b) All available technology, equipment, and techniques
used in the college laboratory could be used to see if
there are any college methods that could produce pure
aspirin by comparing it to standard methods of
obtaining pure aspirin. Teachers could use this
information to test out different production processes
of aspirin or show how students could assess the
purity of aspirin so that tablets could be analysed.
SAQ 2 Question:
Decide on a research title for the following investigations:
a) What is the best catalyst to use to speed up the
decomposition of hydrogen peroxide?
b) Does the size of antacid tablets affect the speed of
neutralisation of stomach acid?

Your answer:




© DistanceLearningCentre.com, 2022 2

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