Experiment 2 Title: Determination of Quinine in Tonic Water Objective: To Determine the Concentration of Quinine Hydrochloride in Sample (Schweppers) given‚ by plotting a Calibration Curve of Fluorescent Intensity against Concentration of Quinine Hydrochloride in ppm‚ after Fluorescence Intensity of a series of Standard Solution prepared and the Sample solution by Fluorescence Spectrometer. Data: Brand name of tonic water sample: Schweppes Dilution factor = 1000 Concentration of
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Lab Report 1 Introduction: Proper chemical formulas entitle many challenges such as the Law of Multiple proportions that states that there may be more than one plausible mole ratio for the elements in that compound. However if we determine the mass of each element in the compound we will be able to get the true chemical formula. In this experiment‚ we used the law of definite proportions to find the chemical formula for a hydrated compound containing copper‚ chlorine‚ and water molecules
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“Few formulas in philosophy have been so widely accepted and variously interpreted as Kant’s injunction to treat humanity as an end in itself”(Hill‚ 38). The categorical imperative formula I have chosen is the humanity formula. The humanity formula is the second formulation categorical imperative of the three formulas Kant come up with. This formulation states that we should never act in such a way that we treat humanity‚ whether in ourselves or in others‚ as means only. This formula also says that
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Determination of Concentration of Potassium Hydroxide Weigh boat 0.87g Weigh boat + Sulphamic acid 3.29g Weigh boat after transfer 0.87g Sulphamic acid 2.42g | Trial | 1st | 2nd | 3rd | 4th | 5th | Start | 3.00 | 3.20 | 5.20 | 18.55 | 1.90 | 14.65 | Finish | 17.35 | 18.10 | 18.10 | 31.50 | 14.65 | 27.65 | Titre | 14.35 | 14.90 | 14.90 | 12.95 | 12.75 | 13.00 | Average titre = 12.90cm3 NH2SO3H + KOH – NH2SO3K + H20 Sulphamic Acid Standard Solution Moles from mass
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Introduction A complex ion consists of a metal ion with Lewis bases attached to it. These Lewis bases form strong coordinate covalent bonds with the central complex ion in which both electrons of the bond are donated by the Lewis base. The Lewis bases that form this complex are referred to as ligands and they are typically either neutral molecules or anions. Polydentate ligands have multiple lone pairs of electrons that enable them to bond multiple atoms to the central metal atom. The stability
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Stephanie Ryman Professor Holmes English 111 10/8/13 Breastfeeding vs. Bottle feeding Choosing whether to breastfeed or bottle feed is one of the first choices mothers have to make. The decision to breastfeed or formula feed a baby is a personal decision each and every family will have to make together. Many expecting mothers have to analyze the benefits of both before making a decision that will shape their lives as the baby grows and develops. There are numerous advantages and disadvantages
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An review of article “Empirical Analysis of the Relationship between Student Examiners’ Learning with Deliberate Test Practice and Examinees’ Intelligence Test Performance” Han Gao Lander University The article “Empirical Analysis of the Relationship between Student Examiners’ Learning with Deliberate Test Practice and Examinees’ Intelligence Test Performance” is written by author Edwards‚ O.‚ & Rottman‚ A. (2011). Intelligence test as introduced by Edwards‚ O.‚ & Rottman‚ A. (2011)
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NESTLE – INFANT FORMULA INCIDENT 1. What are the responsibilities of the companies in these or similar situations? When expanding into a new country‚ especially if it’s a third world country‚ the multinationals should be aware of the impact their products could have on that specific society which might not be prepared to use their products. Thus‚ before marketing and distributing the product‚ the company must first be sure that the population knows how to use it. For example Nestle could have
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At its threshold‚ he passed the Harvester‚ Who sensed the determination of the huntsman. He besought him to reconsider continuing forward; “You will not make it far like that!” he warned. The huntsman scoffed at the first beast’s warning Presuming his words were a means of intimidation. He continued into the woods‚ where the next of the five waited‚ Leaving the gentle Harvester in a daze. Well‚ days passed‚ then weeks‚ and then months; And there was no evidence of the huntsman’s return. Many wondered
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Chemistry 121 Colligative Properties Lab Demonstration of Selected Calculations from Choice I Determination of Kf for Naphthalene To determine the Kf for naphthalene‚ we need to find the difference in the freezing point of pure naphthalene and the solution of 1‚4-dichlorobenzene in naphthalene. Let’s say that we did this experiment‚ used 1.00 g 1‚4-dichlorobenzene in 10.00 g naphthalene‚ and found that the freezing temperature of pure naphthalene was 78.2°C‚ while that of the solution was 75
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