Water Hardness Using a Titrator Name: Kyndal Petrie Lab Partners: None Date of Experiment: July 19‚ 2013 Location: My house Course Number: Che112 Abstract: This experiment was to determine the hardness of the local water supply. I determined that from the 1mg of EDTA used to turn the mixture blue‚ that the water from my tap is moderately soft. Experiment and Observation: In this experiment I developed a familiarity with the concept of water hardness‚ practice
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in America and the harmful effects to the people who lived there. This political painting was own by Norman Perceval Rockwell a Painter‚ illustrator and 20th-century American author. As the saying goes “ Racism is a refuge for the ignorant. It seeks‚ divide‚ and destroy. It is the enemy of freedom‚ and deserve to be met head-on and stamped out” That’s why Norman Perceval Rockwell uses his work to enlighten people about what’s happening in their society. His art work shows a black American girl in
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The painting "The Runaway" by the famous artist Norman Rockwell shows a young runway boy having a conversation with a local constable at a diner. In my opinion the policeman is trying to talk some sense to the child‚ convincing him to go back home to his family. While the waiter is helping to better out the situation and basically doing a moral deed. This is interesting because with the posture of the police officer and the waiter and how they are closely speaking with the kid‚ I can assume that
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Title: Determination of Water Hardness Using a Titrator Purpose: To become familiar with the concept of water hardness‚ practice a titration technique using a titrator‚ and determine the hardness of the local water supply. Procedure: 1. Gather the test tube holder‚ small stopcock‚ 10-mL syringe (titrator)‚ and 2 thick textbooks and the LabPaq box or 5-6 thick textbooks. 2. Remove the plunger from the titrator and place it back in your LabPaq box. 3. Attach the stopcock to the tip of
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Water “hardness” was analyzed in this experiment‚ through the determination of CaCO3 concentration. This was achieved by the titration of an unknown solution using a standardized 0.1M EDTA‚ and addition of Eriochrome Black T to the unknown‚ to indicate the endpoint of the titration. The average concentration of CaCO3 obtained was 1034 ppm‚ with a standard deviation of 2.4495. The results indicate that the unknown solution can be considered as hard water. Introduction The hardness of water is
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The objective of this lab is to determine the hardness of water‚ using the data collected from each titration performed with the unknown sample. Since the hardness of water arises from the presence of metal ions‚ we can use disodium salt of EDTA and the indicator Eriochrome Black T to determine the concentration of M 2+ ( Mg 2+ or Ca 2+) metal ion impurities. Chemical principle or theory involved in this lab: To determine waters hardness we will use a technique called a chelometric titration
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Broadworth General Hospital 1721 Rockwell Lane Sunshine Heights‚ IL 60136 April 24‚ 2013 Jeremy Dittmer Wydade Consulting Services 672 Continental Ct. Sunshine Heights‚ IL 60136 Dear Mr. Dittmer‚ My name is Jillian Gates and I’m the Administrative Assistant of the Human Resources Department at Broadworth General Hospital located at 1721 Rockwell Lane Sunshine Heights‚ IL 60136. I would like to set up a seminar with your company on June 24th 2013 at 9:00 a.m. This seminar will be held
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Lights‚ camera‚ paint brush‚ action! The thrill of creating a story through the lens of a camera and the fine hairs of a paintbrush was the life of Norman Rockwell. Capturing the small-town life of an everyday American scene was Rockwell’s way of creating the world that wasn’t perfect into his own view of a place that was. With the Rockwell creativity of drawing his perspective of an American perfection; Edward Hopper created otherwise. Creating more realistic and expressed his feelings into the
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experiments with predetermined values of process parameters‚ the tensile strength is measured and the micro hardness is measured. The results are given in the table 3.5. Table: 3.5 Ultimate Tensile Strength and Micro hardness of SMAW & TIG for Experimentation Exp. No Groove Angle (Degree) Root Face (mm) Root Gap (mm) SMAW TIG UTS (MPa) Vickers Hardness (Hv0.1) UTS (MPa) Vickers Hardness (Hv0.1) 1 30 1 0 304 209 358 220 2 30 1.5 1 275 210 324 221 3 30 2 1.5 222 216 261 227 4 45 1 1 542 215 638
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Canvas) painted in 1938 by Norman Rockwell‚ the artist illustrates a moment when the painter is confused on what to do next. The controversy in the painting shows how the painter have gathered all of the necessary tools but needs to come up with a game plan to get the ball rolling. Most of the time when an artist is viewed they have already come up with a creative idea for a painting but this particular artist is having some struggles on an idea to get on track. Rockwell tells the story about why procrastination
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