I need procedure of part 1 and 3 and detailed answers of PART 2 a luonline.black
ID: 1082597 • Letter: I
Question
I need procedure of part 1 and 3 and detailed answers of PART 2
a luonline.blackboard.com 018 https://luonline.blackboard.co.. (85) Ahmed A Lab 1: Calibration of Glassware and Preparing Solutions Calibration of Glassware 1. (20pts) For each trial, ill the buret with distilled water to the 0.0mL mark. Respectively draw 10 mL 20 mL, 30 mL, 40 mL, and 50 mL. Measure the mass of the water and determine corresponding volume from the density of water. Draw a linear graph or perform linear regres sion on the theoretical amount of water (-value) and experimental amount of water (y-value) (use Excel or similar software) Note: to convert mass of water into volume, you will need to apply the correction factor (mL/g) from Table 2-5 in the textbook, a factor that is temperature dependent so make sure you record the temperature of water during lab time. 2.(20pts) Answer the following questions: 1. Why does one use water for this experiment? 2. Why does one use distilled water? 8. It one could use tap water, why should one not use fresh water from the tap? 4. Why is calibration desirable or necessary? 5. Do you see a difference between the theoretical amount and experimental amount? Why or why not? Preparing Solutions Table salt, beaker, volumetric flask, balance, weighing paper, stirring rod Procedure(60pts) 1. Prepare 100 mL of 0.1M NaCI solution 2. Prepare 100 mL of a 0.5 wt% NaCl solution 3, Prepare 100 mL of a 0.2 wt% NaCl solution from the 0.5 wt% solution. Design your own detailed procedures, carry out the procedures for all solution preparation, and report what you have done for preparation of all solutions using descriptive andfor mathematical expressions whenever necessary 80 FO F7 F3 4Explanation / Answer
1. water is used beacuse it is an universal solvent, it has greater dielectric constant then other solvents at room. Due to its large dielectric constat it dissolve any type of solute in it .Due to this property we use it for the exeriment.
2. Beacuse tap water consist certain type of impurties like chlorine, magnisum, calcium etc which may interfare in the experimentation. As a result of which we do not get desired result. So to avoid this we use disttiled water.
4. Calebration provide us accurate results.