Equilibrium
Acids and Bases
Organic Chemistry
Applying Chemical Ideas
Chemistry Skills
Central West NSW
Random
100
Whose principle is about 'opposing the change'?
Le Chatelier's
100
What is the difference between a strong acid and a weak acid?
A strong acid will fully ionise and a weak acid will partially ionise
100
Draw propanoic acid
100
Name an anion (negative ion) that will always be soluble
Nitrate (NO3-)
100
What is molL-1 a unit of?
Concentration
100
Which regional city is approximately 60km from Orange?
Bathurst
100
Who plays 'Venom'
Tom Hardy
200
Complete:
K = Concentrations of _______ over the concentration of the _____
products over reactants
200
Name the strong acids
Hydrochloric Acid
Nitric Acid
Sulfuric Acid
200
Name the following compound:
CH3CH2CH(CH3)CH3
2-methyl butane
200
If a UV-Visible spectrum shows a peak at the wavelength of red light, what colour could the substance be?
Green-Blue
200
What is the formula of the Carbonate ion?
CO32-
200
Which central west town held Japanese Prisoners of War during WWII?
Cowra
200
What is the name of the latest Alien movie?
Romulus
300
What has changed in this system at the dotted line?
Temperature
300
In a titration, acid is pipetted into the conical flask, with the base going into the burette. What should the burette be rinsed in before starting this titration?
The base
300
Some acidified potassium permanganate is added to propan-1-ol. Name the reaction that occurs and the two possible products.
Oxidation. Propanal or Propanoic Acid.
300
How many carbon environments would the following compound have?
3
300
What colour flame would the Barium ion give?
Apple Green
300
Which town starting with M is about halfway between Orange and Parkes?
Manildra
300
Who voices Optimus Prime in the upcoming Transformers movie?
Chris Hemsworth
400
What is the equilibrium expression for the solubility product constant (Ksp) for Calcium Phosphate (Ca3(PO4)2)
Ksp = [Ca2+]3[PO43-]2
400
Acid X is a diprotic acid. It is used to neutralise some sodium hydroxide. If there are 0.2 moles of sodium hydroxide, how many moles of acid X are needed to neutralise it?
0.1 moles
400
Name this compound, and also name the polymer it would form.
Chloroethene or vinyl chlorode. Makes polyvinylchloride (PVC)
400
Use a data sheet to give a possible name to the compound with the following IR spectrum, knowing it has a molecular formula of C3H6O2 and does not react with sodium carbonate.
It is an ester.
methyl ethanoate or ethyl methanoate
400
mg/L is equivalent to what common unit?
ppm
400
Where in the central west would you find the Big Billy Can?
Trangie
400
Who played the role of the Mattel CEO in the Barbie movie?
Will Ferrell
500
Methane reacting with oxygen will not form an equilibrium system. Justify the spontaneous nature of this reaction by referring to Gibbs Free Energy
To be spontaneous Gibbs Free Energy must be negative. In the combustion reaction, enthalpy change is negative and entropy change is positive. This will guarantee that Gibbs Free Energy is negative.
500
A student has 0.1mol/L HCl and 0.1mol/L Acetic Acid (CH3COOH). They are going to neutralise both acids with some sodium hydroxide. Which acid will need the most sodium hydroxide to neutralise it, or will they both need the same amount?
They will both need the same amount.
500
Describe the steps needed to get butanone from but-2-ene
Addition Reaction using HCl. This will make 2-chlorobutane. Substitution reaction using sodium hydroxide. This will make butan-2-ol. Oxidation reaction with acidified permanganate ions or dichromate ions, this will make butanone.
500
The H-NMR shows a singlet (8ppm), quartet (4.2ppm) and a triplet (1.4ppm). Knowing the substance has a molecular formula of C3H6O2 and it does not react with sodium carbonate, what is the substance?
Ethyl methanoate
500
What are some tests you could conduct to show that you have a sample of calcium carbonate?
Add acid - it would react with the carbonate
Do a flame test - it would be brick red for calcium
500
What highways cross each other in Dubbo?
Mitchell and Newell
500
How many Oscars did Oppenheimer win?
7, 8, 10, 11, 12 or 13
13