![]() ![]() ![]() A buoyancy error occurs whenever the density of the otjes as a volumetric flask to see how much volume it actually holds. Weights in a balance also are affected by buoyancy, so they weigh less in air than they would in vacuum. Factors are based on the density of water and are corrected for buoyancy with Equation 2-1. *CRC Handbook of Chemistry and Physics, 68th Edition, CRC Press, Inc., Boca Raton, FL, 1988. da = 0.0012 g/mL, dw = 8.0 g/mL) and the density of water at 20° C (0.9982041 g/mL*), show how the correction factor was determined. Using the buoyancy equation, the density values provided on page 40 (i.e. This is based on the density of water and the correction for buoyancy with equation 2-1 (pg. 3, 1984.Transcribed image text: not? Are you surprised by the discrepancies between these measuring devices! Why/Why not? Do the following proof in your lab notebook and submit the corresponding yellow page(s): For 20° C, Table 2-5 provides a volumetric calibration correction factor of 1.0029 mL/g for water. Aleksandrov, Journal of Engineering Physics, Vol. To obtain the net volume of liquid at 15☌, multiply the uncompensated meter reading by the Volume Correction Factor (VCF) which corresponds to the average measured temperature of the liquid during the delivery.ĭensities are mass (in vacuum) and are taken from: Thermodynamic Properties of Ethanol at Atmospheric Temperature, by T.S. Volume correction factors to 15☌ for ethanol (ethyl alcohol anhydrous) Temperature (☌)Ĭubical coefficient of expansion at 15☌ = 0.001072 per ☌ ![]()
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