Some useful things to know for 301 Exam 3

Some useful things to know for 301 Exam 3 - Some useful...

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Some useful things to know for Exam 3: GENERAL concepts from Exam 1& 2 are used in Exam 3 but not examined directly. Don’t forget your NON programmable calculator! Current draft has 25 questions. NOT all of these are math. One is a bonus question. . There is an equation sheet. Chapter 3: Be able to find molar masses and convert g, moles, numbers of molecules/formula units/atoms. Be able to find % composition for a compound. Know the procedure to work backwards from % composition to find the empirical formula and, if given the MW, be able to then get the molecular formula. Be able to balance equations. Don’t forget: stoichiometric coefficients are NOT zero. . they might be 1 though! Be able to do stoichiometry calculations including, % yield, % purity and limiting reagents. You will not see ALL of these concepts featured in any one question. Always check to see the equation is balanced! Chapter 5: Boyle's, Charles', Combined Gas law, Ideal Gas law: be able to do calculations & qualitative questions (if V doubles what does T do?). Know which parameters go with which law (e.g. Boyle is P and V). DONT forget to convert Celsius to Kelvin. Check all units carefully! Know what STP means! Know Avogadro's Law and how to find molar volume. Know what standard molar volume is, or how to find it from
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Some useful things to know for 301 Exam 3 - Some useful...

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