Ethanol Composition and Properties
Interactive Video
•
Chemistry
•
9th - 10th Grade
•
Practice Problem
•
Hard
Emma Peterson
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the chemical formula for ethanol as mentioned in the video?
C2H5OH
C2H6OH
C2H4O
C3H7OH
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in finding the percent composition of ethanol?
Determine the number of atoms in the compound
Identify the functional group
Find the molar mass of the entire compound
Calculate the molar mass of each element
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the molar mass of ethanol as calculated in the video?
48.02 g/mol
44.01 g/mol
46.08 g/mol
50.05 g/mol
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many carbon atoms are present in ethanol?
4
3
2
1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the percent composition of carbon in ethanol?
54.00%
50.00%
48.00%
52.13%
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many hydrogen atoms are present in ethanol?
4
5
6
7
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the percent composition of hydrogen in ethanol?
12.5%
15.0%
13.8%
14.2%
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