Experiment 7.2 report sheet Prelab.pdf - CHEM 111 u2013...

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CHEM 111 Fall 2020 Experiment 7- Solutions and Reactions Part 2 (Sec A-E) Read through the experimental procedure in Chemtrek and watch the associated experiment videos in Canvas. In the provided spaces, write a lab goal, summarize the procedure, record your observations, and complete all questions included in this report sheet. Section A: Naming and Preparing Solutions Complete before lab. Goal: Complete before lab. Question 1: Complete the table below. This table outlines the solutions being used in this experiment. Name Chemical Formula of Solute Concentration Sulfuric Acid H SO 1 M Sodium Phosphate Na PO 0.2 M Sodium Hydroxide NaOH 1 M Sodium Carbonate Na CO 0.2 M Silver Nitrate AgNO 3 0.1 M Potassium Iodide KI 0.2 M Nitric Acid HNO 1 M Lead Nitrate Pb(NO 3 ) 2 0.2 M Hydrochloric Acid HCl 1 M Iron (III) Chloride FeCl 3 0.1 M Copper (II) Sulfate CuSO 4 0.2 M Barium Chloride BaCl 2 0.1 M Aqueous Ammonia/ Ammonium Hydroxide NH 4 OH 1 M Aluminum Chloride AlCl 0.3 M
CHEM 111 Fall 2020 2 Section B: Solubility and Solutions Question 2: You need to determine which of the solutions (Kerosene, pentanol, ethanol and water) are polar and which are non-polar. Start with a drawing of a water molecule and explain if it is polar or non-polar based on its structure. Complete before lab. Watch the demonstration video to collect data and observe the experiment. In the space below, summarize how the experiment(s) were completed and record all observations and data. In this video we, mix various solutions with water to see if they mix or not. This will help is determine if it is a polar solution or a nonpolar solution. Mixed with water Kerosene = doesn’t mix = non polar Pentanol = doesn’t mix = non polar Ethanol = mix = polar After that, we mix the solutions to each other to see how they react. Kerosene + pentanol = Mix Ethanol + pentanol = doesn’t mix Ethanol + kerosene = doesn’t mix Now we mix KI with water and observe how the KI dissolves completely in water.
CHEM 111 Fall 2020 Question 3: (a)

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