CHEM 1A03 TUTORIAL #1 May 6 th , 2010 Questions – Assumed Knowledge (Thursday ONLY!) ________________________________________________________________________ Page 1 of 1 Please view the file “Guidelines for Tutorials” before attending tutorial. You may want to try these problems in advance so that you can identify those areas where you need the most help. Please bring a printout of the tutorial questions with you, along with a calculator and perhaps the textbook (or at least a periodic table). The Following Questions Are Based On Assumed Knowledge: Ch. 1, 2, 3, 4 & 6 1. A sample of a noble gas has a mass of 0.102 g and exerts a pressure of 0.242 atm in a 0.260 L vessel at 27 o C. Is the gas He, Ne, Ar, Kr, or Xe? 2. A 0.02864 g sample of vitamin A, a compound consisting only of carbon, hydrogen, and oxygen, is burned to form 0.08802 g of carbon dioxide and 0.02703 g of water. Calculate the percentage of each element in vitamin A. 3.
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