chemonomist Posted March 10, 2009 Posted March 10, 2009 Hi guys I have a big problem and I would be grateful if someone could help me, Thanks in advance How would I work out the concentration of hydrogen ions in, for example, 2 mol dm-3 solution of sulphuric acid.
Kaeroll Posted March 10, 2009 Posted March 10, 2009 If the only information you're given is the concentration of an acid, you simply need to consider the equilibrium constant of dissociation (is it a strong acid - i.e. effectively full dissociation, or a weak acid?), and how many protons (H+ ions) are produced by each molecule of the acid. For example, a solution of 1 M HCl would give rise to a concentration of 1 M of protons. Weak acids involve a more complex calculation using the pKa.
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