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Chemistry 10/20/2016

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Christopher Horras

on 20 October 2016

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Transcript of Chemistry 10/20/2016

October 20th, 2016
Lab 8 Procedure
Due on Friday, 10/21/2016 (1 per group)

In one document with a proper heading and title, include the following:

1) Labeled figure with description explaining why chemicals make produce different colored flames when ignited.

2) Calculations for preparation of your 1 M solutions.

3) Pictures of at least 3 flames, labeled as figures appropriately, including descriptions.
1) Make 20 ml of a 1 M solution for all 4 of the chemicals provided using methanol as the solvent.

2) Place 10 ml of each solution in a separate crucible and record which solution is in each crucible.

3) Wait for Mr. Horras to ignite.
Quiz 7 Discussion
Using a labeled diagram with a figure description, explain why chemicals make different colored flames when heated. (1 per group)

(Hint: There is a helpful link posted on Google Classroom)

Lab 8
Lab 8 Product
Class Activity 20
1) Which atom has a greater effective nuclear charge? Prove with drawings/calculations. Show your work.

a) Na or Cl
b) Ca or S
c) H or F
d) K or O

2) Which atom has a larger atomic radius?
a) Na or Cl
b) Ca or S
c) H or F
d) K or O

3) Which atom has a greater electronegativity?
a) Na or Cl
b) Ca or S
c) H or F
d) K or O

4) Sketch an outline of the periodic table, and use arrows to show the periodic trends for effective nuclear charge, atomic radius, and electronegativity.
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