Measurements Experiment Essay

Measurements Experiment Essay Measurements Experiment Essay Date of Experiment: 9/14/2013 Report Submitted: 9/15/13 Laboratory Techniques and Measurements PURPOSE: The purpose of this lab was to experiment using the International System of Units to determine mass, length, temperature, volume, and density of objects and liquids using common measuring devices and formulas. PROCEDURE: In this lab I performed several different exercises to learn how to obtain various lengths, temperature, mass, density, volume, concentration, and dilution. Length: I measured various items using the ruler and recording in cm, mm, and meter. Temperature: I measured water in various temperatures from ice cold to boiling hot then recorded our finding in Celsius and then converted to Fahrenheit and Kelvin. Mass: I measured various objects using our digital scale and recorded the mass in gram and kilograms. Volume/Density: I measured the mass and volume of various liquids and solids to calculate the density of this substance. Concentration/Solution/Dilution: I used sugar and a solution of sugar to learn to calculate molecular weight, molarity, and how to calculate concentration and dilution of that solution. CONCLUSION/DATA TABLES: Length Measurements Object Length (cm) Length (mm) Length (m) CD 12cm 120mm .12m Key 5.7cm 57mm .057m Spoon 18.1cm 181mm .181m Fork 18.5cm 185mm .185m Temperature Measurements Water Temperature ( °C) Temperature ( °F) Temperature ( °K) Hot from tap 42 ° 107.6 ° 315.15 ° Boiling 98 ° 208.4 ° 371.15 ° Boiling for 5 min 101 ° 213.8 ° 374.15 ° Cold from tap 25 ° 77 ° 298.15 ° Ice water – 1 min 5 ° 41 ° 278.15 ° Ice water – 5 min 2 ° 35.6 ° 275.15 ° Mass Measurements Object Estimated Mass (g) Actual Mass (g) Actual Mass (kg) Pen 10g 9.8g .0098kg 3 pennies 8g 7.5g .0075kg 1 quarter 6g 5.6g .0056kg 2 quarters, 3 dimes 18g 18.1g .0181kg 4 dimes, 5 pennies 22g 21.5g .0215kg 3 qtrs, 1 dime, 5pennies 32g 31.7g .0317kg Key 8g 7.6g .0076kg Key, 1quarter, 4pennies 23g 23.2g .0232kg Liquid Measurements Mass A Mass B Mass B-A Liquid Volume (ml) Graduated Cylinder (g) Graduated Cylinder with liquid (g) Liquid (g) Density g/ml % Error Water 5ml 17g 21.9g 4.9g .98g/ml .08% Isopropyl Alcohol 5ml 17g 21.4g 4.4g .88g/ml .12% Magnet – Measurement Method Object: Mass (g) Length (cm) Width (cm) Height (cm) Volume Density Magnet 4.4g 2.5cm .5cm .5cm 0.625cmá µÅ' 7.04g/cmá µÅ' Displacement Method Object Mass (g) Initial Volume (ml) Final Volume (ml) Object Volume (ml) Density (g/ml) Magnet 4.4g 7ml 7.75ml .75ml 5.9g/ml Bolt 8.0g 7ml 8ml 1ml 8g/ml Archimedes’ Method Object Mass (g) Mass of Displaced Water (g) Volume of Displaced Water (ml) Density (g/ml) Metal Bolt 8.0g 1.1g 1.1ml 7.2g/ml Magnet 4.4g .8g .8ml 5.5g/ml Initial Concentration Chemical Mass (g) Molecular Weight (g) Moles in