0x10 7 mx10x10 7 m10x10 14 allaqueoussolut ions

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Unformatted text preview: n pure water, one water mo lecule donates a proton to another water molecule to produce ions. ® H 2 O + H 2 O ¬¾ H 3 O + + OH ¾¾ ¾ Base Acid é Proton ù ê ú êë acceptor úû Acid é Proton ù ê ú êë donor úû é Proton ù ê ú êëdono úû r Ba e s é Proton ù ê ú êë acce tor úû p · In pure water, the transfer of protons between water mo lecules produces equal + – numbers of H3O and OH ions. However, the number of ions produced in pure water is very small, as indicated below: Pure water + – – [H3O ] = [OH ] = 1.0 x 10 7 M + – · When the concentrations of H3O and OH are multiplied together, the ion­ product constant (Kw) is formed. + – Kw = [H3O ] x [OH ] – – – = (1.0 x 10 7 M) x (1.0 x 10 7 M) = 1.0 x 10 14 + – · All aqueous solut ions have H3O and OH i...
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