Chemistry
Procedure as directed
Part A
Data 1.Characteristics of Graduated Cylinder
Max Capacity: 130mL
Scale divisions: major 1mL minor 10mL
Level of uncertainty +/- .05mL
Temperature value and meaning: 20*c most accurate when a cylinder
Is heated to 20*c
2. Use of Graduated Cylinder
Volume of liquid: 130ml
Meniscus -definition- the dip in the water
Why it forms: water pressure pushes out so that makes the middle
Seem lower and surface tension
3. Table 3.1 Volume of Beaker and Erlenmeyer Flask
Flask-610 beaker-730
Glassware Name and Size Volume (mL) according to the beaker or flask Volume (mL) according to the graduated cylinder
Beaker 600 ml 725 mL
Erlenmeyer flask 500 mL
It is about the some between the beaker and the flask. It is 5ml off.
Part B
1. Table 3.2 Mass of flask and beaker
Mass
Type of glassware Mass (g)
Erlenmeyer flask 169g
Beaker 196g
2. Table 3.3 method and difference
Salt
Mass of empty watch glass (g) 22g
Mass of watch glass and salt (g) 28g
Mass of salt (g) 6g
Part C
1. Conversion factors
1inch = 2.54 cm
2.54cm= 1inch (or 1cm =.394 inches)
2. Table 3.4 Glassware heights
Heights of laboratory glassware
Beaker Grad cylinder
In cm in cm
Measured 5 12.5 10 25
Calculated 5 12.5 10 25...
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