Define pH as pH = –log[H+(aq)]. Define [H+] = 10–pH. Week 20 Define pH as pH = –log[H+(aq)]. Define [H+] = 10–pH. Convert between pH values and [H+(aq)]. © Pearson Education Ltd 2009 This document may have been altered from the original

Calculator key for pH calculations Week 20 Calculator key for pH calculations © Pearson Education Ltd 2009 This document may have been altered from the original

Explain qualitatively the differences between strong and weak acids. Week 20 Explain qualitatively the differences between strong and weak acids. Explain that the acid dissociation constant, Ka , shows the extent of acid dissociation. Deduce expressions for Ka and pKa for weak acids. © Pearson Education Ltd 2009 This document may have been altered from the original

Juices of citrus fruits, such as lemon and lime, contain citric acid Week 20 Juices of citrus fruits, such as lemon and lime, contain citric acid © Pearson Education Ltd 2009 This document may have been altered from the original

Calculate Ka for a weak acid. Week 20 Calculate pH from [H+(aq)] and [H+(aq)] from pH for strong and weak acids. Calculate Ka for a weak acid. © Pearson Education Ltd 2009 This document may have been altered from the original

State and use the expression for the ionic product of water, Kw. Week 20 State and use the expression for the ionic product of water, Kw. Understand the importance of Kw in controlling the concentrations of H+(aq) and OH–(aq) in aqueous solutions. © Pearson Education Ltd 2009 This document may have been altered from the original

Week 20 Calculate pH from [H+(aq)] and [H+(aq)] from pH for strong bases, using Kw. © Pearson Education Ltd 2009 This document may have been altered from the original