CHY 103 Chapter Notes - Chapter 15: National Hockey Association, Alkali Metal, Bicarbonate

• School: Ryerson University
• Department: Chemistry
• Course: CHY 103
• Professor: Sharonna Greenberg

Document Summary

A base accepts a proton and becomes a conjugate acid. An acid donates a proton and becomes a conjugate base. 15. 4 acid strength and the acid ionization constant (ka) If the equilibrium lies far to the right, the acid is strong (completely ionizes). If the equilibrium lies far to the left, the acid is weak only a small percentage of the acid molecules ionize. The solution contains many intact hf molecules. (cid:1834)(cid:1827)(cid:4666)(cid:1853)(cid:1869)(cid:4667)+(cid:1834)(cid:2870)(cid:1841)(cid:4666)(cid:1864)(cid:4667) (cid:1834)(cid:2871)(cid:1841)+(cid:4666)(cid:1853)(cid:1869)(cid:4667)+(cid:1827) (cid:4666)(cid:1853)(cid:1869)(cid:4667) If the attraction between h+ and a- is weak, then the reaction favours the forward direction and the acid is strong. If the attraction between h+ and a- is strong, then the reaction favours the reverse direction and the acid is weak: the stronger the acid, the weaker the conjugate base, triprotic is when there are three ionisable protons. The acid ionization constant (ka: quantify the relative strengths of weak acids with the acid ionization constant. (cid:1834)(cid:1827)(cid:4666)(cid:1853)(cid:1869)(cid:4667)+(cid:1834)(cid:2870)(cid:1841)(cid:4666)(cid:1864)(cid:4667) (cid:1834)(cid:2871)(cid:1841)+(cid:4666)(cid:1853)(cid:1869)(cid:4667)+(cid:1827) (cid:4666)(cid:1853)(cid:1869)(cid:4667) (cid:3028)=[(cid:1834)(cid:2871)(cid:1841)+][(cid:1827) ]