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Denisity Lab Report

# Denisity Lab Report - Ryan O'Hearn Chemical Principles I...

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Ryan O’Hearn Chemical Principles I Lab Density of Solids and Metric Measurements 11:25:56 Purpose To measure the density of regular and irregularly shaped solid objects and practice using the metric measurement systems. Procedure See “EXP #1 – PAGE 1-10” in “Chemistry 205 Lab” Manual Data Tables, Graphs A. Density of a Regularly-Shaped Solid Unknown ID Length Depth Radius Mass Density 82 3.80cm 1.85cm .925cm 30.125g 2.95g/cm 3 B. Measurement of Volume by Displacing a Liquid Unknown ID Starting Volume New Volume Mass Density 82 50.0mL 61.0mL 30.125g 2.74g/cm 3 C. Density of an Irregularly-Shaped Solid Unknown ID Starting Volume New Volume Mass Density kk 50.0mL 65.5mL 135.554g 8.75g/mL D. Density of Glass Beads or Metal Shot Total Mass Mass Vial, Cap Mass Beads Start Volume New Volume Density 108.036g 24.611g 83.425g 50.0mL 85.7mL 2.34g/mL 1

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E. Thickness of Metal Foil Length Width Mass Density 7.7cm 4.2cm .14g 1.6x10 -3 g/cm 3 Sample Calculations A. Volume= ×r π 2 ×Length V= ×(.925cm) π 2 ×3.80cm V=10.214cm 3 Mass=30.125g Density=Mass ÷ Volume D=30.125g ÷ 10.214cm 3 D=2.95g/cm 3 B. Volume of Solid=New Volume - Starting Volume V=61.0mL-50.0mL V=11.0mL Mass=30.125g Density=30.125g ÷ 11mL D=2.74g/mL C. Volume=65.6mL-50.0mL V=15.5mL Mass=135.554g Density=135.554g ÷ 15.5mL D=8.75g/mL D. Mass of Beads=Mass of Vial, Cap, Beads – Mass of Vial and Cap 2
Mass of Beads=108.036g – 24.611g Mass=83.425g Volume=85.7mL – 50.0mL V=35.7mL Density=83.425g ÷ 35.7mL

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