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Unformatted text preview: ituation is quite different for weak acids and bases. They dissociate partially and to +
different degrees. The more an acid dissociates, the more free H ions are present and the stronger the weak acid. ─
A similar situation exists for bases: the more a base dissociates, the more free OH ions are present and the stronger the weak base. No attempt is made in this experiment to rank the weak acids or bases according to their relative strength. In this experiment, you will use indicators to distinguish between acids, bases and neutral substances. To distinguish between strong and weak acids and bases, semiquantitative conductance testing will be performed. The result of the conductance test should clearly distinguish between strong and weak electrolytes, and will permit you to identify the acid or the base as strong or weak. However, no attempt is made in this experiment to rank the weak acids or bases according to their relative strength. 6 Chemistry 52 EXPERIMENT #2 PROCEDURE: You will determine the conductance and the effect on indicators (Red litmus paper, Blue Litmus paper, and phenolphthalein) of a set of 10 substances and a...
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