CHF02 Unit 3: Practice Problems
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Section 3.1: Basic Concepts Revisited.
1. Fill in the blanks.
a) The number of protons in an atom is represented by the
number represents the sum of protons and neutrons.
CHF02 Unit 1: Practice Problems
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Section 1.1: The Scientific Method
1. What is the scientific method?
2. The scientific method is comprised of 4 distinct phases; number the phases in the correct order
from 1 - 4.
Title: Investigation of a Burning Candle
To observe and recognise the colours and to explain what happens when a candle burns.
Sherlock Holmes said "You see but you do not observe".
Take an example: you are standing across
Title: The Effects of Hydrogen Bonding
The aim of this experiment is to observe simple physical properties and relate these to the
presence of hydrogen bonds.
Water is a simple molecule, yet it is most vital to all living t
Title: Mass Percent of Acetic Acid in Vinegar
The aim of this exercise is to determine the percent by mass of acetic (ethanoic) acid in
Vinegar is a common household item that is found in a number of prod
Title: Flame Tests
The aim of this experiment is to show how various metal ions may be identified by examining
the colour they impart to flames.
All metal elements have distinct properties. One of these properties is its ow
Title: Formula of a Hydrate
The aim of this exercise is to determine the number of molecules of water associated with a
hydrated inorganic salt.
A hydrate is a chemical that has water molecules loosely bonded to it. The wat
Title: Molecular Weight of a Volatile Liquid
The aim of this exercise is to determine the molecular weight of a volatile liquid using a
modified Dumas method.
One of the important applications of the Ideal Gas Law is found
Citing References in Foundation Chemistry Lab reports
What is referencing?
Referencing is a standardised method of formatting the information sources you have used in your assignments or written work. Any given
style serves two purposes: http:/www.usq.edu
Title: Models of Molecules
The aim of this experiment is to develop an appreciation of the three dimensional nature of
molecules, and to construct molecular models of some common molecules using basic theory.
It is not poss
Title: Reaction between Copper Sulfate and Iron
The aim of this experiment is to:
Determine the stoichiometric relationship for the reaction between copper sulfate and
Calculate the percent yield of copper for the reaction betwee