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?
The naturally occurring acid 2-hydroxypropane-1,2,3-tricarboxylic acid is also known as
Cellulose is an example of a condensation polymer, and it is the major component of biomass.
The diagram shows a galvanic cell used to measure electrode potentials.
Which one of the following species could be analysed using AAS?
An analytical chemist thinks that a sample of drinking water contains high levels of copper(II).
Consider the following graph which relates to the Haber process:
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:
The table shows the recorded values for the enthalpy of combustion of natural gas, from different sources, under standard conditions.
A student carried out an experiment, using the apparatus shown, to find the heat of combustion of ethanol.
Which one of the following species contains a coordinate covalent bond?
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?
Consider the table below:
The diagram below shows a polymer.