As a part of the stage 6 chemistry syllabus, students in
their HSC year are to perform a titration as a part of the acidic environment
module. Students are to conduct the first-hand investigation in groups of four
within the classroom with teacher supervision and instruction. By using Microsoft
excel students can use a spreadsheet in order to configure the data and
determine where the point of neutralisation takes place. By doing this students
can also run simulations on different molarities and acid volume and determine
how much the point of neutralisation differs. Students can discuss the molarity
of the acid or base while also discussing experimental errors. These include
NaOH (base) lost to splashing before end point was reached, burette
contamination or the readings could be off are something to discuss if student
groups have different results for the same molarity being tested.
Stage 6 Chemistry
Outcome 9.3 The
Acidic Environment
9.3.4 Because of the
prevalence and importance of acids, they have been used and studied for
hundreds of years. Over time, the definitions of acid and base have been
refined
- Describe the correct technique for conducting titrations and preparation of standard solutions
- Perform a first-hand investigation and sole problems using titrations and including the preparation of standard solutions, and use available evidence to quantitatively and qualitatively describe the reactions between selected acids and bases
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