How can I prepare 0.1N sulfuric acid solution beginning with a 95-98% sulfuric acid solution, and what is the difference between molarity (M) and normality (N)?
Corrie writes ….. Here’s an answer I gave a while ago to a question about normality: Normality is used in chemistry for concentrations of solutions, in units of ‘equivalents’ per dm3, but has now been largely replaced by molarity, in moles per dm3. It is, however, still used in some areas, such as food science and biochemistry. The mass of one ‘equivalent’ of a substance depends what type of reaction it is involved in. For instance, reacting as an acid, how many protons it loses; or as an oxidising agent, how many electrons it gains. Thus the same substance could have more than one equivalent mass! Just as a 1.0 M solution contains 1 mole per dm3 of a substance, a 1.0 N solution of a substance contains 1 equivalent mass of a substance per dm3. Thus the mass of a substance in volume of Z dm3 of a solution of normality W is equal to Z x W x equivalent mass. Examples of equivalent masses: the equivalent mass of an acid is that mass which contains 1.008 g of replaceable hydrogen. Thus th
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