CHEM 112 Chapter Notes - Chapter 16: Weak Base, Conjugate Acid, Logarithmic Scale
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21 Mar 2019
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Bronsted-lowry acids and bases are proton acceptors and porton donors, respectively. Lewis acids and bases are electron pair acceptors and donors, respectively. Bronsted-lowry acid-base reactions involve proton transfer and the formation of a conjugate acid and a conjugate base. A conjugate acid-base pair differ only by the presence or absence of h+ While monoprotic acids are capable of donating one proton, polyprotic acids such as diprotic acids can donate more than one proton. An amphiprotic species can both donate and accept protons. Water undergoes autoionization, where two water molecules react to form the hydronium and hydroxide ions. The ionization constant for water, kw, is the name given to the equilibrium constant for the autoionization of water. The p scale is a logarithmic scale used for a very large or small numbers. For example, ph is the negative log of the hydronium ion concentration.
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