CHEM4 ACIDS & BASES MINDMAP
- Created by: mohz
- Created on: 07-01-14 09:31
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- CHEM4
- Acids and Bases
- Br0nsted-Lowery acids and bases
- Acid = H+ Donor & Base = H+ Acceptor
- pH of STRONG ACIDS
- fully dissociated therefore just pH = -log [H+]
- pH of STRONG BASES
- ionic product of water, Kw = [H+][OH-] -- (rearrange)
- Weak Acids and Bases
- Expression for Ka and pKa = -logKa
- pH of WEAK ACIDS
- *Depends of values given*
- pKa
- pH = 1/2 pKa - 1/2 log[acid] (quick method)
- pKa
- *Depends of values given*
- Br0nsted-Lowery acids and bases
- Buffers
- Applicatons
- Calibrate pH meters in lab
- Biochemical reasearch + Enzymes- correct conditions for Dyeing Fabrics
- Shampoos containing acidic buffers
- 2 types
- Acidic buffers
- Weak Acid + a Salt of its congugate base
- Basic Buffers
- Weak Base + a Salt of its congugate acid
- Acidic buffers
- pH of Acidic Buffers
- *depends on value given*
- pKa
- pH = pKa + log [salt]/ [acid]
- Ka
- [H+] = Ka x [acid]/[salt]
- pKa
- *depends on value given*
- Biological Buffers
- e.g. pH of blood (H2CO3)
- Applicatons
- Acids and Bases
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