what do u do in analytical chemistry lab?

Question

I want to major in chemistry, but I wanna know how is some classes?
First, what kinds of experiments students perform in "analytical chemistry" lab? How is "chemical bonding" and "physical chemistry"?

Answer 1

From my classes at university, analytical chemistry is the part of chemistry that involves either the measurement of a particular chemical in a sample (quantitative) or the determination of chemical composition (qualitative). The laboratories for those thus focus on techniques for these, such as acid-base titration, measurement of mass in crucibles, standard UV spectroscopy, infrared spectroscopy (with emphasis on peak sizes), chromatography, and other techniques.

In physical chemistry, you are focusing on the physical characteristics of chemical reactions or on the physical structure of chemicals themselves. The laboratories would then involve calculations of the enthalpy (basically heat) of a reaction, electrochemical analysis, infrared spectroscopy (with emphasis on peak locations), and similar experiments. Chemical bonding, which is usually related to the quantum structure of a molecule, tends to fall under physical chemistry.

Hope that helps.

Answer 2

Analytical chemistry simply quantifies observations, and analyzes data from lab experiments. It is also known as Quantitative Analysis. Physical chemistry is another subject of the broad topic of Chemistry in which chemical bonding - or electrons are concerned. You will learn a whole deal of a lot of stuff, such as crystal field theory, MO Energies, AO Energies, Quantum Theory, etc...

As for deciding to become a Chem major, what is it that you would like to do later? Goto medical school? pharmacology? dental? so forth and so on. There are many majors that specialize and give you a special advantage in whatever it is that you'd like to do later on. Just becoming a Chem major will probably land you a job as a teacher, or a chemical engineer (with lots of physics and math!). If you specialize in Organic chemistry, that opens doors to pharmacology, anesthesiology, so forth and so on. There are many benefits to each subtopic of chemistry, but also with limitations. Consider your dream job, and then look into the courses you need.

Answer 3

When I took Chemistry, the instructor gave each student a mixture of elements, and a standard protocol of experiments to perform.

Based on the results of each step in the protocol, we decided whether or not a specific element was present in our mixture.

The next task, we were again given a mixture of elements, and used a standard protocol to isolate unknown elements, and then another set of procedures, to identify, and quantitate each unknown.

If you want to know what vitamins are in a certain fruit, you would use similar methods to isolate, identify, and quantitate each vitamin.

Chemical bonding is when two or more elements combine and make another chemical compound.

in Physical chemistry, there are solutions, rather than componds, and changes in state, such as temperature changes that result in gas, liquid or solid forms.

Answer 4

In our analytical chemistry lab(which i finished last year ), our instructor just gave us mixture of chemicals or ions and we determined those ions present following the procedures on the book.