NZQA registered unit standard 8470 version 5
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Title Demonstrate knowledge of electrochemistry
Level
Purpose
5 Credits 4
People credited with this unit standard are able to: describe an electrochemical cell; describe the electrochemistry conventions for electrode potentials; and measure electrode potentials and calculate concentrations of electrolytes.
Classification
Available grade
Science > Chemistry
Achieved
Explanatory notes
None.
Outcome 1
Describe an electrochemical cell.
Evidence requirements
1.1 The components and operation of an electrochemical cell are described in terms of their role in generation of electrode potentials.
Outcome 2
Describe the electrochemistry conventions for electrode potentials.
Evidence requirements
2.1 E 0 values, the standard hydrogen electrode, and the spontaneity of cell reactions are described in accordance with electrochemistry convention.
2.2 The relationship between E 0 spontaneity of cell reactions. and free energy (ΔG 0 ) is described in terms of
2.3 Cell potentials are calculated from electrode potentials in accordance with electrochemistry convention.
NZQA National Qualifications Services
SSB Code 130301

New Zealand Qualifications Authority 2020

NZQA registered unit standard 8470 version 5
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Outcome 3
Measure electrode potentials and calculate concentrations of electrolytes.
Evidence requirements
3.1 Electrode potentials are measured and concentrations of electrolytes are calculated consistent with the Nernst equation.
Planned review date 31 December 2017
Status information and last date for assessment for superseded versions
Process Version Date Last Date for Assessment
Registration 1 22 December 1996 31 December 2014
Revision
Review
2
3
19 February 1998
23 November 1999
31 December 2014
31 December 2014
Review 4 18 June 2010 N/A
Rollover 5 27 January 2015 N/A
Consent and Moderation Requirements (CMR) reference 0152
This CMR can be accessed at http://www.nzqa.govt.nz/framework/search/index.do
.
Please note
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Providers and Industry Training Organisations, which have been granted consent and which are assessing against unit standards must engage with the moderation system that applies to those standards.
Requirements for consent to assess and an outline of the moderation system that applies to this standard are outlined in the Consent and Moderation Requirements (CMR). The
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Comments on this unit standard
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if you wish to suggest changes to the content of this unit standard.
NZQA National Qualifications Services
SSB Code 130301

New Zealand Qualifications Authority 2020