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Lecture Notes for PSC 111 - General Chemistry at Mississippi University for Women (MUW)

Notes Information

Material Type:Class Note
Professor:Staff
Class:PSC 111 - General Chemistry
Subject:Chemistry
University:Mississippi University for Women
Term:--
Keywords:
  • Empirical Formulas
  • Carbon Atoms
  • Alkaline Earth Metal
  • The Nucleus
  • Average Atomic Mass
  • Mass Number
  • Neutral Atom
  • Following Compounds
  • Total Number
  • Atomic Mass
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Sample Document Text

Intensive Set Chapter 2 Basic 1. If an atom contains 16 protons and 18 neutrons, what is its mass number? Write the shorthand representation for that atom and name it. 2. If a neutral atom has a mass number of 13 and an atomic number of 6, how many protons, neutrons, and electrons are in that atom? Write the shorthand representation for that atom and name it 3. Natural oxygen consists of 99.76% 16O (15.9949 u), 0.0400% 17O (16.9991 u) and 0.02000% 18O (17.9992 u). What is the average atomic mass of oxygen? 4. Calculate the average atomic mass of magnesium. Magnesium consists of three isotopes: 24Mg = 23.985 u with a percent abundance of 78.99%, 25Mg = 24.986 u with a percent abundance of 10.00%, the rest is 26Mg = 25.983 u. 5. Write the molecular and empirical formulas of each of the following compounds: a. an organic compound, heptanol, has 7 carbon atoms , 16 hydrogen atoms, and 1 oxygen atom b. Vitamin C, ascorbic acid, has six carbon atoms, eight hydrogen atoms, and six oxygen atoms c. Aspartane, an artif...

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