Clackamas Community College

CH 105: INTRODUCTORY CHEMISTRY

 

 

Contact instructor:

Eden Francis

Physical Science
19600 Molalla Avenue
Oregon City, OR 97045
(503) 594-3352
TDD (503) 650-6649

Lesson 6: Wrap Up

In this lesson you learned how to name acids and bases given their formulas and how to determine their formulas given the name.

You know how the concentrations of acid and base solutions are expressed and calculated using both molarity and normality.  You are also familiar with the relationship between moles and equivalents and how these are used to determine molarity and normality, respectively.

You know how to determine the concentration of a solution that results from dilution of a more concentrated solution and how to calculate the concentration of a solution from titration data.  You have successfully performed a simple titration and used that data to determine not only the concentration of an acid solution, but the equivalent weight of the unknown acid that was used to prepare it.

You have a problem set and a lab report to hand in for this lesson. You do not need to rewrite your data tables from the ones in the workbook (unless they are too messy to read easily). You may turn in your workbook pages for this experiment with the calculations attached on a separate page (or pages).

Answers to the self-quiz are below.

Self Quiz Answers:

1.  e

2.  c

3.  b

4.  e

5.  a

6.  e

7.  a

8.  d

9.  3 H2SO3 + 2 Al(OH)3    Al2(SO3)3 + 6 H20
    sulfurous acid + aluminum hydroxide aluminum sulfite + water

10.  3 HBr + Al(OH)3   AlBr3 + 3 H2O
    hydrobromic acid + aluminum hydroxide aluminum bromide + water

 

 

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