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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acceleration and applied force when the total system mass is held constant (Constant Mass)‚ and the relationship between acceleration and total mass when the applied force is held constant (Constant Force). Apparatus Figure 1 Materials/Apparatus Parts • Cart and Cart ramp • Ultra Pulley + Photogate • C Clamp to mount Smart Pulley/Photogate • Vernier Lab Pro • Logger Pro • Mass Set and 1 Hanger • Block Masses • C Clamp Procedure Constant Mass 1. We made sure that the apparatus is set up as shown in
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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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GRAVIMETRIC DETERMINATION OF MOISTURE IN FERTILIZER SAMPLES J.P. FERRERIA DEPARTMENT OF COMPUTER SCIENCE‚ COLLEGE OF ENGINEERING DATE PERFORMED: DECEMBER 6‚ 2012 ------------------------------------------------- RESULTS AND DISCUSSION In this experiment‚ we demonstrated the process called gravimetric analysis‚ where we‚ specifically‚ measured the amount of moisture in a fertilizer sample. Here‚ the weights of the crucibles with the fertilizer samples are measured before and after placing
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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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are often monomorphic in their development‚ and hence early determination of gender would be similarly difficult.In regards to Gallus gallus domesticus‚ the common chicken this difficulty in gender identification is quite evident in their progeny.After
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Complexometric Determination of Water Hardness 9/12/2013 Abstract: Two sets of acid-base neutralization titrations were conducted for experimental analysis. The first set of titrations was to standardize a solution manufactured in the lab. An approximate solution of Na2EDTA of 0.004 M was titrated against a known solution of 1.000 g CaCO3/L to deter mine to exact molarity of the Na2EDTA. Ca2+ + Na2EDTA → CaEDTA + 2Na+ The second set of titrations was to use the now standardized Na2EDTA
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No one knows for sure‚ but telling people the latter – that hard work trumps genes – causes instant changes in the brain and may make them more willing to strive for success‚ indicates a new study from Michigan State University. The findings suggest the human brain is more receptive to the message that intelligence comes from the environment‚ regardless of whether it’s true. And this simple message‚ said lead investigator Hans Schroder‚ may ultimately prompt us to work harder. “Giving people messages
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Pig Trachealis Smooth Muscle Pharmomechanical coupling uses Internal Calcium stores whilst Electromechanical coupling uses Extracellular Calcium Crystal Nguyen School of Anatomy‚ Physiology and Human Biology‚ The University of Western Australia‚ WA‚ 6009 Introduction Smooth muscle contraction occurs when calcium is present in the smooth muscle cell and binds onto calmodulin to activate myosin light chain kinase (Wilson et al.‚ 2002). Phosphorylation of myosin light chains result in myosin
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Determination of g by Free Fall Raw Data: Time (ms) ± 0.01ms Height of release of ball from the sensor plate (cm) ±0.1cm Trial 1 Trial 2 Trial 3 Trial 4 Trial 5 0.0 0.00 0.00 0.00 0.00 0.00 15.0 180.05 179.36 178.74 180.26 180.23 30.0 244.33 244.21 244.71 243.88 245.87 45.0 300.72 301.29 300.59 301.43 301.70 60.0 348.68 348.39 348.77 349.12 348.35 75.0 390.27 390.77 389.58 391.19 390.43 This table below is the results obtained during the experiment in cm/ms. This table below is the results
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