Electrolytes: Ionic Bond and Sodium Chloride Essay

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Week #2 Post Lab 1.) Define the following: electrolyte, nonelectrolyte Electrolyte: A substance that dissolves in water to form solutions that conduct electricity. Nonelectrolyte: A compound that doesn’t dissociate into ions when dissolved in water. 2.) Using examples in the last link, draw beakers showing atomic scale representations of aqueous solutions of the following compounds. Classify each as an electrolyte or nonelectrolyte. * Ba(OH)2 (aq) * NH3 (aq) * C3H7OH (aq) * NaHCO3 (aq) 3.) Why would it be important to use de-ionized water when preparing the aqueous solutions in this experiment? It is important to use de-ionized water in this experiment because you don’t want the electrolytes in the water to…show more content…
7) Although water is a poor conductor of electricity, we are cautioned not to operate electrical appliances around water. Why? Water itself does not conduct electricity very efficiently, but contains trace elements (i.e. sodium) that do contain electrolytes. Week 2: Bright Ideas 1) Evidence: What is the evidence that leads to a claim? This section focuses on the analysis of your data. Draw a copy of the flow chart you made in class and attach it to your post laboratory assignments. 2) Claim: Based on the data, what is the answer to the key question? Write a sentence or two that answers the key question based on the evidence (it does not have to be the “right answer” to get full credit but it does have to be supported by the data). The reason the light bulb would light up was because of the strong electrolytes in the ionic bonds. During the experiment, it was mostly the ionic compounds that were lighting up the light bulb while the covalent compounds did not. 3) Reading: How do the ideas developed in the lab compare with other scientist’ ideas? Start by reading pgs 2-5 given to you in class as well one other source containing related information (like a textbook or educational internet site). How does the flow chart you made during the experiment compare and contrast to the flow chart on pg 5? The flow chart on page 5 was more in-depth than mine. The chart

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