01.07 Accuracy and Precision Lab.pptm

# 01.07 Accuracy and Precision Lab.pptm - 01.07 ACCURACY AND...

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01.07 ACCURACY AND PRECISION LAB BY EUNICE ROSEME

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PROCEDURE (PART I) Part I: Density of Unknown Liquid 1. Measure the mass of the empty 10 mL graduated cylinder using a triple beam balance. Move the weights to measure the mass. When balanced, record the mass in grams. 2. Add about 8.5 mL of the unknown liquid to the cylinder. Record the volume in milliliters. 3. Measure the new mass of graduated cylinder filled with the previously measured water using a triple beam balance. Move the weights to measure the mass. When balanced, record the mass in grams. 4. Repeat Steps 1 through 3 for Trials 2 and Trial 3.
PROCEDURE (PART II) Part II: Density of Irregular-Shaped Solid 1. Measure the mass of the irregular-shaped solid using a electronic balance. Record the mass in grams. 2. Add about 50mL to a graduated cylinder. Record the volume in milliliters. 3. Place the irregular-shaped solid in the previously measured liquid. Record the new volume in milliliters. 4. Repeat Steps 1 through 3 for Trials 2 and Trial 3.

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PROCEDURE (PART III) Part III: Density of Regular-Shaped Solid 1. Measure the mass of the regular-shaped solid using a triple beam balance. Move the weights to measure the mass. When balanced, record the mass in grams. 2. Use a ruler to measure the solid’s length. Record the length in centimeters. Use a ruler to measure the solid’s width. Record the width in centimeters. Use a ruler to measure the solid’s height. Record the width in centimeters.
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• Fall '14
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