![]() Place a 10g sample of each of the above compounds in a separate beaker.ģ. Obtain six 100ml beakers and add 50ml of water to each.Ģ. In the chart provided record if each compound is solubility in water.ġ. Obtain six test tubes and add 25ml of water to each test tube.Ĥ. In the chart provided record if each compound is solubility in ethanol.ġ. Add a two-gram sample of each of the above compounds to each test tube.Ĥ. Obtain six test tubes and add 25ml of ethanol to each test tube.Ģ. If the compound does not melted after 2 minutes put %u201Cno%u201D in the table.ġ. In the chart provided in the observations section, record the order of melting (i.e. Under each watch glass place a Bunsen burner.ģ. Place a two-gram sample of the following compounds in a separate watch glass:Ģ. This is why a %u201Cpermanent%u201D does not wash out when you wash your hair.ġ. The solutions in a %u201Cpermanent%u201D, however, break and reform covalent bonds. The changes are temporary, and as soon as you wash your hair, the hairstyle is gone. Styling hair by wetting it or heating it with a curling iron is an attempt to change the hydrogen and ionic bonds so that they will form a new shape. The curls and waves in your hair are the result of the many hydrogen, ionic and covalent bonds between the chains of atoms that make up each hair follicle. In covalent compounds the bonded atoms share the electrons. Positive and negative ions are created through this process. Ionic bonds result when one or more electrons from one atom of group of atoms are transferred to another atom. These chemical bonds are of two basic types %u2013 ionic and covalent. Objective: To learn the properties of ionic and covalent bondsĬhemical compounds are combinations of atoms held together by chemical bonds. Submit your lab report by the milestone due date.(There is a %u201CSample Lab Report%u201D and %u201CLab Report Instructions%u201D files in week 1%u2019s course folder). Write a lab report of the lab within MS Word.Perform the various calculations with your collected data as listed in the lab%u2019s observationssection and Create your own data table in MS Word or Excel to record your data.Perform the lab, collecting the indicated data as noted in the observations section (create your own data table within your lab report collecting the specific data from this list).Follow the Procedure as outlined in ChemLab.Some labs include some modification from the ChemLab instructions and if so, these modifications will be listed in our course with each lab. Read through the Introduction in BOTH the course and in ChemLab.Open ChemLab and select %u201CBond Lab%u201D when prompted. ![]() In this experiment, tests on these properties will be performed enabling the classification of compound bonds as ionic or covalent. The physical properties of a substance such as melting point, solubility and conductivity tell us a lot about the type of bond in a compound. The following website will show you to some interesting laboratory techniques.If you Google the word, you will find that decanting is important in separating the sediments from an old bottle of wine. FYI: %u201CDecanting%u201D means pouring off a liquid without disturbing the sediment or lower liquid layers. Here, you will learn about selecting instruments, chemicals, pouring and decanting. As in any beginning laboratory in an introduction course, you begin by learning some of the basics.You must include the "observation sheet" as a table within your lab report for this first lab. For you to get an idea of real lab techniques, you will find some video links to laboratory videos.These changes take precedence over what is found in the lab. You will learn of any changes in the lab in the pre-lab comments. All labs will have pre-lab comments found within ANGEL.
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