Course Introduction This course covers Topic 7: Chemistry of Acids, which is assessed on Papers 1 and 2 of the Eduqas GCSE Chemistry course. This chapter contains two specified practicals: SP7A Preparation of crystals of a soluble salt from an insoluble base or carbonate SP7B Titration of a strong acid against a strong base using an indicator The following information, included in this course, is assessed at Higher Tier only: The distinction between dilute and concentrated solutions, and between strong and weak acids The fact that pH is a log scale The relationships between the volume, mass of solute and concentration of a solution