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Introduction: When the elements are arranged in order of increasing atomic number, they show a periodic recurrence of properties. Elements in vertical columns of the periodic table form groups (families) with similar physical and chemical properties. These similarities are due to the fact that all the elements within a group have the same number of valence electrons in their valence shells.
In this experiment, you will investigate the periodic variation of density and solubility of compounds within groups. You will determine the densities of certain 4A elements and the solubilities of certain salts of Group 2A elements. Using your results, you will predict the densities of other Group 4A elements and the solubility of an unknown Group 2A salt.
Purpose:
1. To measure the densities of certain elements in Group 4A
2. To measure the solubilities of certain salts of Group 2A elements
3. To describe the periodic variation of the density and the solubility of compounds.
Materials: Lead, Silicon, Tin, .1M Magnesium nitrate, .1M Calcium nitrate, .1M Strontium nitrate, .1M Barium nitrate, 1M Sulfuric Acid, 1M Sodium Carbonate
Your download will include a lab for students that is ready to be copied and passed out. It will include Title, Purpose, Introduction, Procedure, Safety Precautions, and Follow Up Questions. The handouts are arranged so that you can have students prepare their own lab report, or have them use the included Student Data Pages. All answers are included.
You will receive both an editable word document as well as a pdf form of the lab.
In this experiment, you will investigate the periodic variation of density and solubility of compounds within groups. You will determine the densities of certain 4A elements and the solubilities of certain salts of Group 2A elements. Using your results, you will predict the densities of other Group 4A elements and the solubility of an unknown Group 2A salt.
Purpose:
1. To measure the densities of certain elements in Group 4A
2. To measure the solubilities of certain salts of Group 2A elements
3. To describe the periodic variation of the density and the solubility of compounds.
Materials: Lead, Silicon, Tin, .1M Magnesium nitrate, .1M Calcium nitrate, .1M Strontium nitrate, .1M Barium nitrate, 1M Sulfuric Acid, 1M Sodium Carbonate
Your download will include a lab for students that is ready to be copied and passed out. It will include Title, Purpose, Introduction, Procedure, Safety Precautions, and Follow Up Questions. The handouts are arranged so that you can have students prepare their own lab report, or have them use the included Student Data Pages. All answers are included.
You will receive both an editable word document as well as a pdf form of the lab.
K-12 Subject:
Teaching Duration:
90 Minutes
Type of Resource:
Answer Key:
Included
# of Pages/Slides:
10
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I have been teaching for 27 years. I have taught Biology I, Honors Biology I, Chemistry, Honors Chemistry, Biology II, and AP Biology.
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