Basic Terms of Probability. Section 3.2. Definitions Experiment: A process by which an observation or outcome is obtained. Sample Space: The set S of all possible outcomes of an experiment. Event: Any subset E of the sample space S. Probability of an Event Probability of an event is a measure of the likelihood that the event will occur.
A saturated solution can dissolve more when you increase its temperature and less when you decrease .When hot saturated solution is cooled to zero degrees Celsius, or beyond it the solubility of the solvent will decrease and precipitate until it forms a solid.
The ready formation of a precipitate shows that the barium sulphate must be pretty insoluble. In fact, 1 litre of water will only dissolve about 2 mg of barium sulphate at room temperature. Solubility of the carbonates The carbonates tend to become less soluble as you go down the Group.