Objective: To become familiar with various types of laboratory equipment
Materials and Methods/Procedures: A 10ml pipette was used to pipette 5ml
of water 4 times into a 50 ml graduated cylinder, and the results were
measured. Next, a 50 ml graduated cylinder was filled to the 50 ml mark
twice and the contents were poured into a dry 100 ml volumetric flask, and
a 100 ml graduated cylinder was filled to the 100 ml mark and the contents
were poured into a dry 100 ml volumetric flask. The results of the 100 ml
experiments were then compared. A ruler was used to measure the side of a
cube in inches and the number was converted into centimeters, millimeters
and meters. A triple beam balance was used to weigh an item, the results
were converted to grams, milligrams and kilograms. An empty 100 ml beaker
was weighed and then 50 ml of water was added, and the beaker was weighed
again. The beaker's weight was subtracted to obtain the weight of the
water. The procedure was repeated with a 25 ml beaker and 10 ml of 200
proof ethyl alcohol. 50 ml was converted to microliter, deciliter and
liter. Six stoppers of similar size were weighed individually and the
Results: The results of the pipette procedure showed the volume in the
graduated cylinder was 20 ml and there was not a difference in the expected
result. The procedure with 100 ml of water proved that the volume of both
experiments was the same- 100 ml. The measurement of the side of the cube
was .5 inches, 1.27 cm, 12.7 mm and 00127 meters. The weight of the object
was 15.852 g, 15851 mg, and 0.015852 kg. The weight of the beaker was
49.49 g, the beaker and water weighed 99.93 g, resulting in the water
weighing 50.440 g. The density of the water was 440 g/ml. The weight of
the next beaker was 30.059 g, the beaker and alcohol weighed 37.825 g, with
the alcohol alone weighing 7.226 g. and havin
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