The equation below shows aqueous methanol reacting with hydrochloric acid. $\text{CH}_3\text{OH(aq)} + \text{HCl(aq)} \rightarrow \text{CH}_3\text{Cl(g)} + \text{H}_2\text{O(l)}$ Describe a practical way to determine the concentration of hydrochloric acid in a sample.
Deduce the concentration of hydrochloric acid 4 hours after the experiment begins.
At which point on the graph, A, B, C or D, is the reaction rate fastest? Give a reason for your answer by referring to the graph.
Describe and explain, using ideas about collisions between particles, how the rate of a reaction changes when the temperature is decreased. All other conditions stay the same.
Describe the effect of hydrochloric acid on Universal Indicator paper.
Name one metal chloride that does not dissolve in water.
Chlorofluorocarbons (CFCs) diffuse into the atmosphere. Describe what CFCs do to the atmosphere and explain why this causes a problem.