chemistry 111

Lab 2 Measurements in the Laboratory All messurements on this lab report must include units. Work must be shown for all calculations Answers must be expresed with units in the correct number of significant figures Data Table i: Measurement of Mass: 1. a) Cakulate the average mass of O bject in from the values measured using each type of talance. b) Calculate the average mass of Object 72 from the values measured using each type of balance. c) Calculate the averuge mass of O bject #3 from the values measured using each type of balance. 2. a) Calculate the total mass of all three objects using values from the analytical balance: b) Calculate the total mass of all three objects using values from the milligmm balance: c) Calculate the total mass of all three objects using values from the centigram balance. Data Table 1I: Measurement of Volume 1. a) Calculate the average volume of water measured using the graduated cylinder. b) Calculate the average volume of water measured using the serological pipette. 2. Calculate the percent difference between the measured volume using the beaker versus the measured volume using the graduated cylinder. Use the average volume of water in the beaker (20mL) for the "accepted value" and the average volume of water in the graduated cylinder as the "measured value". %difference=1/(acceptedvalue+measuredvalue)acceptedvalue-measuredvalue100