Titrations and Preparations: Volumetric Analysis and Laboratory Syntheses

Name: Titrations and Preparations: Volumetric Analysis and Laboratory Syntheses
Author: StemPy Lab

How a chemist measures how much is there, and how a compound is made in a flask.

We prepare standard solutions, choose indicators and run acid and base titrations.
Then come the permanganate titrations of oxalic acid and Mohr's salt, with percentage purity.
Last, we make Mohr's salt, potash alum, acetanilide, p-nitroacetanilide, aniline yellow and iodoform.

3 lessons, about 1 h 25 min3 simulations10 problems4 practice questionsPython in every lesson

Course outline (3 lessons)

Lesson 1about 30 min
Standard solutions, indicators and acid and base titrations
How much acid is in a bottle of vinegar? A titration answers this by adding a solution of known concentration, drop by drop, until the reaction is just complete. This lesson shows how to make a standard solution, how to choose an indicator, and how to calculate the result.
1 simulation1 practice question1 Python program4 problems1 Python lab
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Lesson 2about 25 min
Permanganate titrations: oxalic acid and Mohr's salt
Some titrations need no indicator at all. Potassium permanganate is purple, and its own colour tells us when the reaction is finished. This lesson shows how it is used with oxalic acid and with Mohr's salt, and how to find a percentage purity.
1 simulation1 practice question1 Python program3 problems1 Python lab
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Lesson 3about 30 min
Preparing inorganic and organic compounds
Making a compound in a flask is a chance to meet the ideas of the whole course: reagents in the right ratio, careful heating, crystals, and a yield. This lesson sets out six preparations, what happens in each step, and how to work out the yield.
1 simulation2 practice questions1 Python program3 problems1 question set1 note
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JEE Main format20 questions · 50 min

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