DensitySpecificGravityExperiment(PartBPages15-24)

# - DENSITY AND SPECIFIC GRAVITY CONTINUED SPECIFIC GRAVITY DETERMINATION BY URINOMETER We will determine the specific gravity of the synthetic

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DENSITY AND SPECIFIC GRAVITY CONTINUED SPECIFIC GRAVITY DETERMINATION BY URINOMETER We will determine the specific gravity of the synthetic urine sample or an aqueous solution of sodium chloride by two different methods. The first method involves calculating the specific gravity by dividing the density of the synthetic urine sample or an aqueous solution of sodium chloride by the density of water. A table of densities of water at different temperatures has been provided on page 11 of this document. The second method to determine the specific gravity of a synthetic urine sample or an aqueous solution of sodium chloride will involve the use of a urinometer or hydrometer. PROCEDURE: 1. Pour 45 mL of your unknown synthetic urine or aqueous sodium chloride solution into a 50 mL graduated cylinder. Record the unknown ID code on data sheet on page 19 of this document. 2. Grasp the urinometer float at its top and slowly insert into the graduated cylinder. Do not wet the float stem above liquid line since excessive wetting of the stem will cause the float to sink below the true test result. 3. Spin the float slightly as it is released. 4. Read the scale of the urinometer at the lowest portion of the meniscus of the synthetic urine

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## This note was uploaded on 03/31/2011 for the course CHEMISTRY 1023 taught by Professor Bloxton during the Spring '11 term at Temple.

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- DENSITY AND SPECIFIC GRAVITY CONTINUED SPECIFIC GRAVITY DETERMINATION BY URINOMETER We will determine the specific gravity of the synthetic

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