Isopropyl Alcohol Lab Report

Data
Table 1. Comparing the temperature of each liquid every 30 seconds
Time (sec)
Temperature of the water (°C)
Temperature of the isopropyl alcohol (°C)
Temperature of the ethyl alcohol (°C)
30
34.6
43.1
37.0
60
45.3
63.8
55.1
90
54.8
80.2
74.3
120
64.0
80.5
76.8
150
72.4
80.5
76.8
180
79.7
80.5
76.7
210
86.8
80.4
76.6
240
93.4
80.3
76.4
270
97.7
80.2
76.4
300
98.5
80.2
76.3
330
98.8
80.2
76.2
360
98.0
N/A
76.2
390
98.0
N/A
76.1
420
97.9
N/A
76.1
450
98.2
N/A
76.1
480
97.9
N/A
76.1
510
97.7
N/A
76.1
540
97.6
N/A
76.1
570
97.5
N/A
76.1
600
97.5
N/A
76.2

Table 2. Boiling points of the three different liquids
Liquid
Boiling Point (°C)
Water
98.9
Isopropyl Alcohol
80.6
Ethyl Alcohol
76.9

Table 3. Polarities of the three different liquids
Liquid
Polarity

Qualitative Data for the boiling of distilled water
Time (sec)
Qualitative Data
0 - 240
The water is basically motionless
240
The water begins to boil, but there are few bubbles that are small and originate in a “circle” at the bottom of the beaker
270
The bubbles increased in size and frequency
270 - 600
The bubbles remained at the same frequency and size, but the water level decreased slightly due to evaporation
Table 5. Qualitative Data for the boiling of isopropyl alcohol
Time (sec)
Qualitative Data
0
Many tiny bubbles as soon as we put the beaker on the hot plate. Bubbles came from the bottom. Sounded “fizzy”, like a soft drink.
75
Bubbles increased and the liquid is boiling vigorously. Above the beaker, the objects seem to be distorted by a “wavy” movement. This is most likely due to the evaporation of the alcohol and the refraction of the light.
100
The amount of bubbles is so high that the liquid itself is barely visible in comparison with all of the