Tuesday, January 3, 2012

How to study organic chemistry for an A-Plus

Organic chemistry is the most interesting and easier to learn the subject matter of all sciences. However many students find intimidating. Organic chemistry fear permeates a lack of understanding of the subject which itself derives from an erroneous approach to learning object.

There are two stages of organic chemistry - based reasoning and the practice of learning. My twenty years of experience teaching chemistry, I have come across a large number of students, and they did very well themselves by simply following the steps above. Basic learning chemistry considerations are as follows:

Organic chemistry is not hard: Organic chemistry is not difficult at all. This is one of the most systematic sciences. This subject more practical needs and if you're comfortable in writing and identification of compounds from different structural ratings, I'm sure will provide you a good start. Don't forget that 40 per cent of organic chemistry is done if you're well in identification of structural formulas or write structures.

Don't Just read - practice it: You can delete your concepts only by questions. You must make a minimum of 10-20 different questions for each concept to master. For example, Carbocations concept governs product training preferred in many a reactions. Each book has a detailed explanation of the meaning and stability of carbocations. Understand the concept of the order of stability is very simple and straightforward, however the problem occurs when you start to apply the concepts of the problem. Identification of the different types of carbocations becomes easy until you have practiced various questions based on it.

Collapse your chapter in small matters: For example, write Lewis Structures, resonance, tautomerism etc. You must not cram the given language in the book, read many topics to understand. For example in headings of resonance, there are many: s and: s. not pas cram them because will you achieve anything by. What is important is to put into practice the rules by making questions based on the notes. As you rest assured that no Professor only asks you to list of rules for the review - but rules much a teachers favorite issues Forms applications. They may also appear in the true / false statements, but they may be tempted very well if the topic was understood by you.

Understanding organic reactions master their: Organic reactions can only be mastered by understanding. Each atom has a reaction with good reason. It is important to understand the reason why each reaction. For example, if Markovnikov rule, you can try to memorize this - you can also learn by heart. However you will find very difficult to keep them long term. However if you have learned with her reasoning for the stability of the carbocation, believe me you will hold it in your memory long long.

M aster reactions by practising with different examples: my advice is to practice at least ten examples of each reaction to master. For example consider the reaction for reduction of alkene with a metallic catalyst. If you practice different 10 examples of the response, the response will be get etched in your memory as an addition of hydrogen on the double bond cis. Anytime later when you come across this reaction, believe me, the reaction will snap back you immediately.

Exceptions or clumsy behaviour: In organic chemistry, as in every part of life, there are a few exceptions or clumsy behaviour of certain molecules. -Thank God there are only a handful of them. You will find all the books an explanation for their exceptional behavior. Simply include that the reasoning behind it, the exception appears more an exception for you.

Ultimately, I can summarize my experience teaching in organic chemistry in a single sentence:

LEARN WITH PRACTICE AND THINKING ORGANIC CHEMISTRY AND FIND OBJECT SIMPLER FOR EVERYONE.

UMA Sharma is a tutor for Expert chemistry online with more than 17 years of College teaching experience and Test Prep chemistry. For experts online tutorials in organic chemistry at school and college prep level and test for MCAT, DAT, AP, SAT chemistry chemistry tutor site online. The site offers also excellent chemistry tutorials and quizzes. For expert tutorials in organic chemistry, visit the organic chemistry tutor.

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Sunday, January 1, 2012

The Energy Conservation Act

Energy conservation law States that energy can neither be created nor destroyed. Energy can only be conserved. Consider throwing a upwards. What are the forces acting on the ball? One is the weight of the ball can be pulled down. The next is the force behind rising on the balloon provided when the ball leaves the hand.

How far the ball travels upward? Answering this question can be easily to the law of conservation of energy. When the ball is thrown energy there is due to its speed and kinetic energy. His movement upwards the ball has potential energy and kinetic energy. Speed or velocity of the ball will be maximum when it leaves the hand and will be zero when it reaches the maximum height. Anytime speed reduce slowly (this is called as a delay versus acceleration where the veolocity increases continuously). The maximum height traveled by ball then can be determined by equating the potential energy of the destination (here kinetic energy is equal to 0, the ball is at rest), kinetic energy at the beginning of the query (here the potential energy is equal to 0).

Without the force of gravity, we would not drawn down for our planet and therefore we will be always floating upwards. The LCE can be used to make substantial diversions even the object lifted upwards does not in the vertical direction (or goes into a parabolic trajectory).

Imagine a marble is just rolling down a slope and is made to move in a circular ring, energy is conserved in this case as well. Can use the energy conservation act to determine the maximum time that the marble will be inside the circular ring.

How are we able to walk? We walk by the force of friction between foot and land surface. If there was no friction, we would be unable to stop walking. A ball which is rolling on stops floor at any time due to friction between the surface of land and the ball.