Essay on Ionic and Covalent Bonds Lab

915 Words Apr 17th, 2015 4 Pages
Lab Report
Ionic and Covalent Bonds

Lab: Ionic and Covalent Bonds


The purpose of this experiment was to explore the properties of chemical substances that can be used to identify the types of bonds in a chemical substance using a laboratory procedure. The two types of bonds being identified were ionic and covalent. Based on a substance’s properties, how can you determine whether its bonds are ionic or covalent? This is the question I posed before starting the experiment. An ionic bond is a bond that results from the attraction between oppositely charges ions; one atom "gives" another atom an electron. Combinations of metals and nonmetals typically form ionic bonds. A covalent bond is a bond that results from
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There were no controlled variables used in this experiment.

Materials and Procedure:
five 25 mL beakers - 5 mL of oil stirring rod - 2 g cornstarch
10 mL graduated cylinder - 2 g sodium chloride spoon - 2 g sodium bicarbonate conductivity apparatus distilled water in a wash bottle

Lab Procedure
Step 1: Gather materials.
***Repeat steps 2-4 for each of the following: 5 mL of oil and 2 g each of cornstarch, sodium chloride, and sodium bicarbonate.
Step 2: Note State and Appearance.
a) Put the substance in a 25 mL beaker.
b) Observe and record data in the data table on its state of matter, appearance, and texture and whether it has a crystalline structure.
Step 3: Determine Solubility in Water.
a) Add distilled water to the beaker until the volume totals 15 mL.
b) Use the stirring rod to stir for 3 minutes.
c) Record the amount of substance that dissolved – all, some, a little, or none.
Step 4: Determine Conductivity.
a) Prepare the conductivity apparatus. The electricity should be turned off.
b) Spray a small amount of distilled water on the electrical leads of the conductivity apparatus. Insert the electrical leads of the conductivity apparatus into the beaker.
c) Turn on the electricity. Record whether you observe conductivity.
d) Turn off electricity. Clean the electrical leads with soap and

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