| Giang and Kristen | 1.43 x 10-5 | ± 2.64 x 10-6 | -10114.3% | Alicia and Dan | 7.94 x 10-6 | ± 5.06 x 10-6 | -5571.4% | Uncertainties: 10 mL volumetric flask | ± 0.02 | 25 mL volumetric flask | ± 0.03 | 1 mL volumetric pipet | ± 0.006 | 5 mL volumetric pipet | ± 0.01 | 4 mL volumetric pipet | ± 0.015 | 3 mL volumetric pipet | ± 0.010 | 50 mL graduated
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calculate the concentration of the ferrous solution. Materials: - .020M potassium permanganate solution - Mohr’s salt solution (concentration unknown) - 6.0 M H2SO4 - 10- mL volumetric pipet - Pipet bulb - Beakers Procdure: Get 40 mL of standardized Potassium Permanganate and Mohr’s Salt solutions. Rinse the burets‚ and record the initial volumes. Measure 10mL of Mohr’s Salt solution. Add 10 mL of H2SO4 solution. Begin titrating with the Potassium Permanganate until the endpoint is reached
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laboratory equipment used to make SI measurents. Procedure Length Measurements 1. Gather the metric ruler‚ CD or DVD‚ key‚ spoon‚ and fork. 2. Look at the calibration marks on your ruler to determine the degree of uncertainty and number of significant figures that can be made when measuring with a ruler. 3. Measure the length of each of the following objects with the ruler in (cm)‚ to one degree
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Eggshell Lab Lab Set-Up: Materials: * pipette with pipette bulb * conical flask * 1 beaker * 1 molar sodium hydroxide solution * 2 molar hydrochloric acid solution * 1 funnel * 1 piece circular filter paper * crushed poultry eggshell * crushed farm eggshell * phenolphthalein * Distilled water * White tile * Paper tray * burette in burette stand * electronic scale Procedure: Step 1: Standardization of the NaOH solution using
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this by first preparing a blank and a set of standards to create a calibration curve and then used that calibration curve to determine the concentration of a tonic water sample. Experimental Procedure: The materials required for this experiment were a 0.5M solution of Nitric Acid‚ 10 ppm standard of quinine sulfate‚ distilled water‚ Tonic Water‚ and 1M solution of Sulfuric Acid. The equipment required was a 500 mL volumetric flask‚ a
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General College Chemistry LabPaq / Published by: Hands-On Labs‚ Inc. sales@HOLscience.com / www.HOLscience.com / Toll Free 866.206.0773 A Laboratory Manual of Small-Scale Experiments for the Independent Study of General College Chemistry 50-0123-CK-02 LabPaq® is a registered trademark of Hands-On Labs‚ Inc. (HOL). The LabPaq referenced in this manual is produced by Hands-On Labs‚ Inc. which holds and reserves all copyrights on the intellectual properties associated with the LabPaq’s
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BROMATE EXPERIMENTAL PROCEDURE (this is an alternative procedure) Preparation of Standard 0.015 M Potassium Bromate Weigh approximately 2.6 g of dried and cooled reagent grade KBrO3 to the nearest 0.1 mg. Transfer quantitatively to a 1000 mL volumetric flask. Initially‚ dissolve the KBrO3 in about 200 mL of distilled water. Dilute to the mark and mix thoroughly. Calculate
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Marie Alessandra T. Reyes Group 4 18L Quantitative Determination of the Acidity of Soft Drinks I. Introduction Soft drinks are well known beverages among the young that are consumed mostly for pleasure. These beverages normally contain flavoring‚ sweeteners coloring‚ carbonic acid and acids. Carbonic acid and acids play an important part in the formulation of soft drinks. They enhance the flavor and give a pleasant refreshing ’lift ’ to the drink. The type of acid used can even affect the palatability
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Chapter 1: Measuring the amount of substance Analytical chemistry: science of chemical measurement. Its object is the generation‚ treatment and evaluation of signals from which information is obtained on the composition and structure of matter Measurement: process of obtaining the magnitude of a quantity Example: The amount of saturated fat in the sample is 3 g/serving. Quantity: attribute of a phenomenon that may be distinguished qualitatively and determined quantitatively Value: magnitude
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Analysis of Soda Ash and Carbonate-Bicarbonate Mixture Submitted: February 27‚ 2013 Department of Chemical Engineering‚ Faculty of Engineering University of Santo Tomas España‚ Manila Abstract A standard acid solution like HCl can be used as titrant for the analysis of both soda ash and a carbonate-bicarbonate mixture. In the analysis of soda ash‚ the volume needed to neutralize the soda ash is used to compute for its alkalinity‚ in this experiment we obtained a 17.6 % alkalinity with an error
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