The key to getting a good grade in chemistry is in knowing what to study. After that, it is a simple matter of putting in the time in order to attain this perfectly achievable goal. The main chemistry topics can be broken down to leave you with the essential information needed to pass your final.
You will not escape chemistry without memorizing the solubility rules, so grit your teeth and do it. The first 2 rules are of utmost importance and the remaining 9 should be very familiar to you. Having these rules memorized will enable you to answer questions from several different chapters correctly. These rules will tell you if something is soluble as well as if something will precipitate from a reaction. Questions involving solubility are guaranteed to show up on your chemistry final.
It can seem like there are several things to memorize when it comes to the study of gases; however, all you need to remember is the formula PV=nRT. Know each variable, the units for that variable, and how to manipulate the equation. In all likelihood, you will be given all but one variable and required to solve for it. Practice these gas problems with the calculator you intend to use for the exam.
This is generally the most confusing topic in basic chemistry. It is also one of the most important concepts to gain in order to pass the course with an A letter grade. Know how to convert between grams (g) of something to moles (mol) of it by using the molar mass (g/mol). This is a matter of Algebra. Almost all of the questions relating to stoichiometry will involve using the periodic table to determine the molar mass of a substance, converting the amount given into moles, and using the mole to mole ratio found in the balanced chemical equation to arrive at the amount of the second substance. Here is what your equation will look like:
[___g of Substance 1] x [mol/___g Substance 1] x [ ___mol Substance2/___mol Substance1]
Acids and Bases
You must memorize the 6 strong acids. If you know which ones are strong, then you invariably know which ones are not strong (weak). Reacting a strong acid and a strong base will always result in salt and water. It is important to know how to deduce which salt will be formed and what the molecular formula will be. This means you will need to know the charges on the ions, which must be memorized as well.
Oxidation and reduction reactions are important to understand and know how to work through. Oxidation numbers are easily confused with ionization charge, so be sure to know the difference. Most redox questions involve assigning and solving for oxidation numbers. Memorize the rules for assigning oxidation numbers.
Chemistry can be overwhelming because of the massive amount of information, so concentrate on these 5 areas to get an A on your chemistry final. Memorize solubility rules, ionization charges, and oxidation numbers. Know how to work the basic gas formula and move through a stoichiometric equation. With these focus areas and your determination, you are sure to be successful!
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