Mg2+ Determination using EDTA Linh Nguyen Chem 1212L – 165 Feb 08 ‚ 2014 Purpose and Procedure: The purpose of this experiment is using Compleximetric titration and EDTA to determine the concentration of Mg2+ in solution; and also calculating the percent by mass of MgO in the unknown sample. This procedure results no significant deviations. The procedure for the experiment is from the lab manual referenced below Laboratory Experiments for Chem 1211L & 1212L (6e)
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The Secret Diary of Adrian Mole Aged 13 3/4 Author: Sue Townsend Published: Mandarin Paperbacks‚ 1983 Setting: from Thursday January 1st to Saturday April 3rd (Two years later) Plot Summary Adrian is an acne plagued thirteen-year-old teenager who reports his thoughts and experiences in his secret diary every day. He finds himself confronted with all sorts of problems‚ worries about his father who works all day and is a heavy smoker and drinker‚ about his dog that runs away and regularly has
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CALCULATIONS Determining the amount Limiting Reagent used. nlimiting reagent = Molarity x Volume or Mass / Molar Mass Example: Limiting reagent is 5mL of 1.0 M HCl nlimiting reagent = Molarity x Volume nlimiting reagent = (1.0 [mol/L]) x 0.005 [L]) = 0.005 mol Determining the qrxn and qcal. qrxn + qcal = 0 -qrxn = qcal qrxn = ΔHrxn x nlimiting reagent qcal = Ccal ΔT qrxn = - Ccal ΔT + mcsolid ΔT (note: only if there is a precipitate formed in the reaction)
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Kimchi Fried Rice It was a quarter to five on a Wednesday afternoon. I was sitting at my desk at work‚ not wanting to start a new task‚ because I am ready to end my day. While getting ready to leave work‚ hunger strikes. I stumbled upon a Korean food blog and a Kimchi fried rice recipe caught my eyes. I clicked into the recipe and the brownish rice with colorful red and green vegetable picture made me salivate. My stomach was making noises and I wanted that Kimchi fried rice. Kimchi friend rice
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Purple Shore Crabs‚ Hemigrapsus nudus‚ are small crabs that are similar in structure to true crabs. They have carapaces that are commonly found to be 4-5.6 cm. A distinguishing characteristic of the Purple Shore Crabs is their lack of setae. They are usually found to be dark purple‚ olive green or red with white or cream marks‚ on their carapace. Their legs match the color of their carapace but have white tipped claws. Though Purple Shore Crabs are capable of living out of water for several
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STOI 903 Laboratory Report To: Director City Forensics Laboratory From: Kevin Khong Chemistry 1141 Section – 028 Date: October 13‚ 2014 Re: Sanitation Worker Accident The analysis for Experiment 6: STOI 903 was conducted by Lindsey and I. The analysis was performed at Texas State University – San Marcos in the Chemistry lab. The concentrations used in the experiment were 0.5M of sodium hydroxide and 0.5M of sodium hypochlorite. The concentrations of the solutions found in the
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Course Content: |Wk |Date |Topic |Homework |Due | |1 |8/26 Lec |Ch. 1 Chemical Foundations | | | | |8/26 Lab |Safety Video‚ Lab Check-in |Exp. 2 Advanced study assignment (ASA2) | | |
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Data Collection and Processing Aspect One -2.00grams of Sr(NO3)2 used -2.00grams of CuSO4 -Reactants: Sr(NO3)2 and CuSO4 Trial Mass of Beaker (g) Mass of Beaker with Sr(NO3)2 (g) Mass of Beaker (g) Mass of Beaker and CuSO4 (g) Mass of Filter Paper (g) Mass of Filter Paper and Contents (g) 1 111.08±0.01 113.08±0.01 111.1±0.01 113.1±0.01 1.28±0.01 2.93±0.01 2 111.1±0.01 113.1±0.01 111.23±0.01 113.23±0.01 1.27±0.01 2.98±0.01 3 111.26±0.01 113.26±0.01 111.09±0.01 113.09±0.01 1.27±0.01
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Little Marvin was never anything special. Actually he was‚ Marvin was an unusually small mouse that seemed to have no talent‚ especially in the athletics department. In comparison to his strong athletic sisters and brothers‚ he was a shy little mouse who always had his nose burrowed in a book. He was constantly pushed around by the other mice due to his small size and was never was able to‚ or even confident‚ enough to fight back. Instead‚ he vowed that one day‚ he would be able to accomplish a
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To: Director City Forensics Laboratory From: Chem. Section Subject: Sanitation Worker Accident Date: Stoi 903 The analysis for experiment four: Stoi 903was conducted by Me (name) and my partner (name). They analysis performed for experiment four: Stoi 903 took place at Texas State University- San Marcos in room 117 of the chemistry building. The concentrations used in the experiment were both .5 M sodium hypochlorite and sodium thiosulfate. The concentrations of the solutions found
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