1. CHEM 1310: General Chemistry. (Sections LM). LECTURE NOTES. Chapter 4:
Types of Chemical Reactions and Solution Stoichiometry. For Lecture on ...
CHEM 1310: General Chemistry
(Sections LM)
LECTURE NOTES
Chapter 4: Types of Chemical Reactions and Solution Stoichiometry For Lecture on Friday, September 7, 2007
I. Types of Chemical Reactions 1. Precipitation Reactions 2. ______________________________ Reactions 3. ______________________________ Reactions
II. Precipitation Reactions A. What is a precipitation reaction? A type of reaction in which a ___________________ _______________ its own __________________ in the given solution. Under what types of conditions will precipitation occur? 1. Addition of _________________________ solute 2. Removal of _________________________ 3. __________________________ of solvent 4. Change of __________________________
B. Chemical Equations for Precipitation There are 2 fundamental questions a chemist would want to answer regarding precipitation reactions: 1. How could one _________________ what product would ____________________ in a given precipitation reaction? 2. How would one write a ________________ ________________ to represent a precipitation reaction?
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Predicting the Precipitate
Step 1:
Step 2:
Step 3:
Study Table 4.1 from the text – Solubility Rules (VERY IMPORTANT) How would one write a balanced chemical equation for the example shown?
C. Acid-Base Reactions Arrhenius acids are _______ _______________. Arrhenius bases are ________ __________________. Broadened definitions:
What is a titration? Systematic addition of a ________________ until all of the other reagent is ________________________. A common indicator of pH neutralization is ____________________. Example Problem: What is the [NaOH] when _______________mL of NaOH are used to titrate ______________g of KHC8H4O4?
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Study Example 4.10 and other problems like it for Exam #1. Notes from Example 4.10 from class:
D. Oxidation-Reduction Reactions What is a redox reaction? A class of reactions characterized by the __________________ of _______________________. Consider the following redox reaction: In this reaction:
2 Mg(s) + O2(g) 2 MgO(s)
1. Magnesium is __________________; it ________________ __________ electrons as the charge on its atoms __________________ from 0 to +2.
2. Oxygen is ___________________; it ______________ electrons as the charge on its atoms ____________________ from 0 to -2 (i.e. becomes more negative).
STUDY Table 4.3 Rules for Assigning Oxidation States (Very Important) Extra Notes:
