ACIDS, BASES AND BUFFERS CALCULATIONS
por IVANKAX 28
1. www.differentscience.com A level Biology and Chemistry tuition and resources
2. BASE CALCULATIONS
2.1. Calculate the pH of a base that dissociates to give 1 mole of Hydroxide ions
2.1.1. STEP 1
2.1.2. STEP 2
2.2. Calculate the concentration of a base that dissociates to give 1 mole of Hydroxide ions
2.2.1. STEP 1
2.2.2. STEP 2
2.3. Calculate the pH of a base that dissociates to give 2 moles of OH-
2.3.1. STEP 1
2.3.2. STEP 2
2.3.3. STEP 3
2.4. Calculate the concentration of a base that dissociates to give 2 moles of OH-
2.4.1. STEP 1
2.4.2. STEP 2
2.4.3. STEP 3
3. WATER CALCULATIONS
3.1. Calculate the pH of pure water
3.1.1. STEP 1
3.1.2. STEP 2
3.2. Calculate Kw from the pH of pure water
3.2.1. STEP 1
3.2.2. STEP 2
4. STRONG ACID CALCULATIONS
4.1. Calculate the pH of diprotic strong acid
4.1.1. STEP 1
4.1.2. STEP 2
4.2. Calculate the concentration of a diprotic strong acid
4.2.1. STEP 1
4.2.2. STEP 2
4.3. Calculate the pH of a monoprotic strong acid
4.3.1. THIS IS ALL YOU NEED TO DO
4.4. Calculate the concentration of s monoprotic Strong acid
4.4.1. THIS IS ALL YOU NEED TO DO
5. Calculate pKa
5.1. IF YOU ARE GIVEN Ka
5.2. IF YOU DON'T HAVE Ka
5.2.1. STEP 1
5.2.2. STEP 2
6. PKa CALCULATIONS
6.1. Calculate Ka from pKa
6.1.1. THIS IS ALL YOU NEED TO DO
7. BUFFER CALCULATIONS
7.1. Calculate the pH of a buffer solution
7.1.1. STEP 1
7.1.2. STEP 2
7.2. Calculate the concentration of the salt in a buffer solution
7.2.1. STEP 1
7.2.2. STEP 2
7.3. Calculate the concentration of the weak acid
7.3.1. STEP 1
7.3.2. STEP 2
7.4. Calculate the pH of a buffer made from equal concentrations of acid and salt
7.4.1. STEP 1
7.4.2. STEP 2
7.5. Calculate the ratio of salt to acid needed to make a buffer solution of a given pH
7.5.1. STEP 1
7.5.2. STEP 2
8. WEAK ACID CALCULATIONS
8.1. Calculate Ka
8.1.1. IF YOU ARE GIVEN pH THIS IS STEP 1, ELSE GO STRAIGHT TO STEP 2
8.1.2. STEP 2
8.2. Calculate the concentration of a weak acid
8.2.1. STEP 1
8.2.2. STEP 2
8.3. Calculate the pH of a weak acid
8.3.1. STEP 1
8.3.2. STEP 2