DistanceLearningCentre.com
STUDENT ASSESSMENT TAQ SHEET
COURSE: Access to Higher Education Diploma
SUBJECT: Chemistry
UNIT TITLE: Core Principles of Chemistry
LEVEL: 3 (Graded)
CREDITS: 6
How to use this document
This document contains your Tutor Assessed Questions (TAQs) for this assessment, as well as
information about formatting your work (including word counts and references) and deadlines.
Do not attempt to fill in this document. Please use the related Student Assessment Answer
Sheet to answer your TAQs.
Further resources:
You will need to be logged in to your Learner Account to access
these resources.
We advise that you check the Ascentis Subject Set Unit
Specifications – Core Principles of Chemistry for the
‘indicative content’ of the unit, as this may help you to
understand how you could meet specific assessment criteria
Student Handbook
Library: Log in to your Learner Account and click on ‘Library’ to view
various resources to help you with your learning.
You will need to be logged in to your Learner Account to access
these resources, which also require a password:
Study Skills - How to make sure your work is ‘Ready for
Marking’
© DistanceLearningCentre.com, 2022 1
, IMPORTANT NOTE:
The podcasts in this unit are essential reading / listening in
order to complete this unit, please use them fully
Read through all the instructions below before you begin to
write anything.
We have produced a podcast to help you understand the
questions which can be accessed below:
YouTube Podcast giving extra help with your assessment
(You can find the Podcast transcript in the Appendix at the end of
this document)
© DistanceLearningCentre.com, 2022 2
, Course: Access to Higher Education Diploma
Subject: Chemistry
Unit title: Core Principles of Chemistry
Level: 3 (Graded)
STUDENT ASSESSMENT TAQ SHEET
TAQs for this unit
Your Tutor Assessed Questions (TAQs) for this unit are shown below.
INTRODUCTION / Due to the nature of the subject, the word counts are to be taken
OBJECTIVES loosely rather than fixed. Equations are not included in word
counts. However, the whole assessment should be no more than
2500 words.
The objectives for this assignment are for you to demonstrate that
you understand:
• enthalpy change of combustion, reaction, and formation,
• how to calculate enthalpy change of combustion, formation, and
reaction,
• factors that affect rate of reaction,
• pH concepts,
• reactions of acids with alkalis, metals, and carbonates,
• Redox reactions,
• Le Chatelier’s principles.
NOTE:
Read through all the instructions below before you begin to
write anything, including the information on your Student
Assessment Answer Sheet.
TAQ 1:
Assessment criteria 1.1, 1.2, 1.3, 1.4
Part 1
The following reaction shows the complete combustion of ethane (and it
is an example of the burning of natural gas).
C2H6 (g) + 3.5O2 (g) → 2CO2 (g) + 3H2O (g)
a) Using the average bond enthalpies shown below, calculate
the enthalpy of reaction (Hr) for the complete combustion of
ethane.
Average Bond Enthalpies (kJ mol-1)
C-C +348
C-H +413
C=O +799
H-O +463
O=O +498
© DistanceLearningCentre.com, 2022 3
STUDENT ASSESSMENT TAQ SHEET
COURSE: Access to Higher Education Diploma
SUBJECT: Chemistry
UNIT TITLE: Core Principles of Chemistry
LEVEL: 3 (Graded)
CREDITS: 6
How to use this document
This document contains your Tutor Assessed Questions (TAQs) for this assessment, as well as
information about formatting your work (including word counts and references) and deadlines.
Do not attempt to fill in this document. Please use the related Student Assessment Answer
Sheet to answer your TAQs.
Further resources:
You will need to be logged in to your Learner Account to access
these resources.
We advise that you check the Ascentis Subject Set Unit
Specifications – Core Principles of Chemistry for the
‘indicative content’ of the unit, as this may help you to
understand how you could meet specific assessment criteria
Student Handbook
Library: Log in to your Learner Account and click on ‘Library’ to view
various resources to help you with your learning.
You will need to be logged in to your Learner Account to access
these resources, which also require a password:
Study Skills - How to make sure your work is ‘Ready for
Marking’
© DistanceLearningCentre.com, 2022 1
, IMPORTANT NOTE:
The podcasts in this unit are essential reading / listening in
order to complete this unit, please use them fully
Read through all the instructions below before you begin to
write anything.
We have produced a podcast to help you understand the
questions which can be accessed below:
YouTube Podcast giving extra help with your assessment
(You can find the Podcast transcript in the Appendix at the end of
this document)
© DistanceLearningCentre.com, 2022 2
, Course: Access to Higher Education Diploma
Subject: Chemistry
Unit title: Core Principles of Chemistry
Level: 3 (Graded)
STUDENT ASSESSMENT TAQ SHEET
TAQs for this unit
Your Tutor Assessed Questions (TAQs) for this unit are shown below.
INTRODUCTION / Due to the nature of the subject, the word counts are to be taken
OBJECTIVES loosely rather than fixed. Equations are not included in word
counts. However, the whole assessment should be no more than
2500 words.
The objectives for this assignment are for you to demonstrate that
you understand:
• enthalpy change of combustion, reaction, and formation,
• how to calculate enthalpy change of combustion, formation, and
reaction,
• factors that affect rate of reaction,
• pH concepts,
• reactions of acids with alkalis, metals, and carbonates,
• Redox reactions,
• Le Chatelier’s principles.
NOTE:
Read through all the instructions below before you begin to
write anything, including the information on your Student
Assessment Answer Sheet.
TAQ 1:
Assessment criteria 1.1, 1.2, 1.3, 1.4
Part 1
The following reaction shows the complete combustion of ethane (and it
is an example of the burning of natural gas).
C2H6 (g) + 3.5O2 (g) → 2CO2 (g) + 3H2O (g)
a) Using the average bond enthalpies shown below, calculate
the enthalpy of reaction (Hr) for the complete combustion of
ethane.
Average Bond Enthalpies (kJ mol-1)
C-C +348
C-H +413
C=O +799
H-O +463
O=O +498
© DistanceLearningCentre.com, 2022 3
