# Laboratory Techniques and Measurements Hands-On Labs, Inc. Version 42-0165-00-02

Autor:   •  June 2, 2019  •  Lab Report  •  692 Words (3 Pages)  •  561 Views

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Laboratory Techniques and Measurements

Hands-On Labs, Inc.
Version 42-0165-00-02

Lab Report

The Lab Report is a summary of the experiment’s questions, diagrams if needed, and data tables.  You need to fill in this document and submit via the Blackboard link in your experiment module. Lab Report is worth 35 pts.  Be careful of Significant Figures.

Exercise 1: Length, Temperature, and Mass

Data Table 1. Length Measurements. (Each line of this data table is worth 0.5 pt)

 Object Length (cm) Length (mm) Length (m) CD or DVD Key Spoon Fork

Data Table 2. Temperature Measurements. (Each line of this data table is worth 0.5 pt)

 Water Temperature (°C) Temperature (°F) Temperature (K) Hot from tap Boiling Boiling for 5 minutes Cold from tap Ice water – 1 minute Ice water – 5 minutes

Data Table 3. Mass Measurements. (Each line of this data table is worth 0.5 pt)

 Object Estimated Mass (g) Actual Mass (g) Actual mass (kg) Pen or pencil 3 Pennies 1 Quarter 2 Quarters, 3 Dimes 4 Dimes, 5 Pennies 3 Quarters, 1 Dime, 5 Pennies Key Key, 1 Quarter, 4 Pennies

Questions (Each question is worth 1 pt)

1. Water boils at 100°C at sea level. If the water in this experiment did not boil at 100°C, what could be the reason?

1. While heating two different samples of water at sea level, one boils at 102°C and one boils at 99.2oC. Calculate the percent error for each sample from the theoretical 100.0°C.

Exercise 2: Volume and Density

Data Table 4. Liquid Measurements. (Each line of this data table is worth 1 pt)

 Mass A Mass B Mass B - A Liquid Volume (mL) GraduatedCylinder (g) GraduatedCylinder with liquid (g) Liquid (g) Densityg/mL % Error Water Isopropyl alcohol

Data Table 5. Magnet – Measurement Method. (Each line of this data table is worth 1 pt)

 Object: Mass        (g) Length  (cm) Width    (cm) Height (cm) Volume (cm3) Density (g/cm3) Magnet

Data Table 6. Displacement Method. (Each line of this data table is worth 1 pt)

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