01.07 Accuracy and Precision..docx

# 01.07 Accuracy and Precision..docx - Part I Density of...

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Part I: Density of Unknown Liquid Trial 1 Trial 2 Trial 3 Mass of empty 10 mL graduated cylinder (grams) 26.6 25.9 26.1 Volume of liquid (milliliters) 8.51 8.08 8.7 Mass of graduated cylinder and liquid (grams) 37.3 36.1 37 Part II: Density of Irregular-Shaped Solid Trial 1 Trial 2 Trial 3 Mass of solid (grams) 38.923 40.358 43.081 Volume of water (milliliters) 50.01 50 51.5 Volume of water and solid (milliliters) 54.7 54.8 56.01 Part III: Density of Regular-Shaped Solid Trial 1 Trial 2 Trial 3 Mass of solid (grams) 27.9 28.4 26.4 Length of solid (centimeters) 4.5 5.3 5 Width of solid (centimeters) 3.5 3 4 Height of solid (centimeters) 4.5 2.5 3 Part I: Density of Unknown Liquid Calculate the mass of the liquid for each trial. (Subtract the mass of the empty graduated cylinder from the mass of the graduated cylinder with liquid.) Trial 1 37.3-26.6 = 10.7 Trial 2 36.1-25.9= 10.2 Trial 3 37-26.1 = 10.9 Calculate the density of the unknown liquid for each trial. (Divide the mass of the liquid calculated above by the volume of the liquid.) Trial 1: 10.7/8.51= 1.2573443 Trial 2: 10.2/8.08= 1.26237642

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Trial 3: 10.9/8.7= 1.25287356 Part II: Density of Irregular-Shaped Solid Calculate the volume of the irregular-shaped solid for each trial. (Subtract the volume of the water from
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