Submission View Your quiz has been submitted successfully. Question 1 1 / 1 point At what time do you have to complete your online prelab assignment to be allowed to participate in the lab? Question options: A week before the lab Day before the lab at 10 pm The morning of lab day at 8 am One hour before the lab Question 2 1 / 1 point Which materials/chemicals belong in the desiccator? Question options: Drying agents such as anhydrous magnesium sulfate silicagel 1 M NaOH aqueous standard
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final compound which I am going to look at is 4-aminobenzenecarboxylic acid. The compound is also known as 4-Aminobenzoic acid. The molecular and structural formula of the compound is C7H7NO2 which means that the compound consists of seven carbon atoms attached to seven hydrogen atoms along with one nitrogen atom and two carbon atoms attached as a carbon-oxygen double bond. The displayed formula for the 4-aminobenzenecarboxylic acid compound is shown and it shows the formula in a ring form therefore
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Vitamins and Minerals What are vitamins? Vitamins are nutrients that everyone needs in small amounts for the body to work properly. Different vitamins have different functions. For example‚ some enzymes need particular vitamins to work. Your body can’t make most vitamins apart from vitamin D‚ so you have to get them from the food you eat. There are two types of vitamins: water-soluble vitamins - these cannot be stored in your body and need to be replaced regularly in your diet fat-soluble
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contents 1. Research and Markets; Global and China Tablet PC Industry Chain Report‚ 2010-2011 - Touch Screen & RAM Manufacturers the Biggest Beneficiaries from the Tablet PC Market..................................................... 1 07 April 2013 ii ProQuest Document 1 of 1 Research and Markets; Global and China Tablet PC Industry Chain Report‚ 2010-2011 - Touch Screen &RAM Manufacturers the Biggest Beneficiaries from the Tablet PC Market Author: Anonymous Publication info: China
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classes of vitamins are Fat – soluble vitamins and water – soluble vitamins. Fat – soluble vitamins include vitamin A‚ vitamin D‚ vitamin E‚ and vitamin K. These vitamins are considered fat soluble vitamins because they are stored in the body for long periods of time and are harder to break down‚ while water soluble vitamins are not. Water – soluble vitamins include vitamin B1 (thiamin)‚ vitamin B2 (riboflavin)‚ vitamin B6‚ vitamin B12‚ and vitamin C‚ folic acid‚ and niacin. These vitamins are classified
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Lab Report: Acid-Base Titration Brianna Morrison Chemistry 111 October 11‚ 2010 Aim: To standardize a solution of the base sodium hydroxide using oxalic acid dihydrate as primary standard acid. Also to determine the amount of sodium hydroxide it takes to titrate a weighted sample of an unknown acid. Procedure: As outlined in instructions provided‚ no changes were made to the procedure. Data: Part A: Trial 1: Amount of H C O 2H O: 0.96 g Buret before titration: 3.6
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example‚ we used error bar where we are trying to compare experiment with controls in Biology. Hepatitis C virus is really difficult to isolate so scientists compared DNA copies of HCV clones and identified one DNA sequence in all clones. We can’t measure perfectly so the results may be meaningless and we used error bar to used on graphs to show the error. Most
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SEGi University Extraction of Benzoic Acid by Balvinder Singh (SCM 015 677) Lab Partners: 1) Surrean Rao 2) Wong Kai Jun 3) Kanaga Luckshimi 4) Sasiskala Regal ECE2332 Chemical Engineering Practices Submitted: 1st October 2013 Supervisor: Mr Ayman William 1.0 Abstract /summary The purpose of this experiment to carry out in the lab is because to determined the capability to water droplet to carry out the liquid-liquid extraction. The studies is to determine
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Vitamin D Vitamin D: Wonder Pill or Overkill? Wouldn’t it be great if one vitamin could build stronger bones and protect against diabetes‚ multiple sclerosis‚ cancer‚ heart disease‚ and depression? Or even help you lose weight? Researchers have high hopes for vitamin D -- which comes from our skin’s reaction to sunlight‚ a few foods‚ and supplements. Learn the facts in the slides ahead … and see who’s at risk for a "D" deficiency. Vitamin D Boosts Bone Health Vitamin D is critical for strong
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Determination of Ka for a Weak Acid Introduction In the experiment preformed the objective is to titrate a weak acid with a strong base. In a titration of a weak acid with a strong base the titrant is the strong base and the analyte is a weak acid. The reaction that will occur is the direct transfer of protons from the weak acid to the hydroxide ion. The data gathered will be represented on the titration curve‚ a graph of the volume of titrant being the strong base plotted against the pH .The
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