Question

How to you create a scheme for quantitive analysis? Please provide an example.

Answer 1

Dear asker,

Your question is way too generalized t oanswer; still I will try to answer this one.

For doing a quantitative analysis, there is no such scheme. There are a few things you should keeo in mind while doing an analysis quantitatively:

1. Keep note of amount, moles and molar ratio of all the components given in the problem.

2. Use the following equation of to find out molarity of components, hence their amount (weight or volume) from the information of molarity.

The above equation comes handy most of the time.

3. There are different methods that can yield results in quantitative analysis: (i) volumetric and (ii) gravimetric analysis. Gravimetric analysis provides more accurate data about the composition of a sample than volumetric analysis. But, it takes more time to perform the experiments in the laboratory. Volumetric analysis doesn't take that much time and still gives satisfactory results. Volumetric analysis can be simply a titration based in a neutralization reaction but it can also be a precipitation or a complex forming reaction as well as a titration based in a redox reaction.

Besides the above methods, instrumentation methods like mass spectrometry can determine specific ratio of compounds present in some mixture of solutions.

The above are general things regarding quantitative analysis. If there is anything specific, you need to ask feel free to write in the comment below. I will get back to you. Thanks.