Which one of the following substances can be classified as an Arrhenius acid?
Phenolphthalein can be used to determine the equivalence point in the titration of acetic acid with sodium hydroxide, but methyl orange is no use in this case. The most appropriate explanation for the above statement is:
A student carried out an experiment, using the apparatus shown, to find the heat of combustion of ethanol.
Identify the two components required to prepare a buffer solution.
Which of the following describes a correct procedure to test for barium ions in 2 mL of a dilute acid solution?
It is important that the reaction of methane with oxygen be monitored to prevent the formation of which substance?
Consider the following graph which relates to the Haber process:
The graph shows the concentrations over time for the equilibrium system:
An analytical chemist thinks that a sample of drinking water contains high levels of copper(II).
What is the correct systematic name for the compound having the structure shown below?
Consider the table below:
HDPE and LDPE are two of the most commercially important polymers in use today. Which one of the following options correctly describes aspects of their chemistry?
The table shows the recorded values for the enthalpy of combustion of natural gas, from different sources, under standard conditions.
Which one of the following species could be analysed using AAS?
The diagram below shows a polymer.