UT Knoxville BIOL 140 - Exam 1 Study Guide (7 pages)

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Exam 1 Study Guide



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Exam 1 Study Guide

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A review of everything from August 21- September 11.


Pages:
7
Type:
Study Guide
School:
University of Tennessee
Course:
Biol 140 - Organization/Function of Cell
Organization/Function of Cell Documents

Unformatted text preview:

BIOL 140 1st Edition Exam 1 Study Guide Lectures 1 7 Lecture 1 August 26 Introduction to the Periodic Table Determine the mass of a molecule composed of different atoms based on information in the periodic table Distinguish between atoms with different numbers of valence shell electrons Predict the number of bonds an atom can form based on the number of valence shell electrons Predict the types of bonds based on the electronegativity of the atoms involved Calculate the grams of a molecule necessary to have a specific concentration in solution Explain the solubility of different types of molecules in an aqueous environment Explain the types of bonds that can form and the role of electronegativity in bond formation and the ability of water to affect the strength of certain bonds Explain how different functional groups affect molecular properties Determining the mass of a molecule based on the periodic table Find the atomic weight usually located under the atomic symbol Multiply atomic weight by the number of atoms Add the products check for correct number of sig figs o Example NH4 N 14 007x1 14 007 o H4 1 008x4 4 032 o 4 032 14 007 18 039 14 04 Distinguish between atoms with different numbers of valence shell electrons Look at the atomic number corresponding with the given element to find the number of electrons divide electrons amongst the orbitals look at the column of the periodic table the element sits in to find the number of electrons in the valence shell Determining atomic bonds based on valence shell electrons Count the number of unpaired electrons in the valence shell that is the number of bonds the atom can make o Example Hydrogen has only one valence electron therefore it can make seven bonds Calculating the grams of a molecule necessary to have a specific concentration in solution Molarity moles of solute liters of solution One mole 6 022x1023 molecules equal to molecular weight in grams Explain the solubility of different types of molecules in an aqueous



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