Concept explainers
Interpretation:
Percentage error in another experiment, a sample of acetic acid consists of
Concept introduction:
Difference between experimental value and accepted value is defined Error. Formula of percentage error is used to calculate slight manufacturing errors in measuring instruments, which is
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Answer to Problem 19STP
Correct answer: Option (b ),
Explanation of Solution
Reason for correct option:
The known table is:
Percentage by mass of carbon, hydrogen, and oxygen in selected compounds | |||
Compound | %H | %C | %O |
Carbonic acid | |||
Acetic acid | |||
Methanol | |||
Methanol | |||
Isopropanol |
The experimental value is
So for the calculation of percentage error-
The percentage error for the sample is
Reasons for incorrect options:
Option (a) the given option,
Option (c)the given option,
Option (d) the given option,
Option (e) the given option,
Chapter 3 Solutions
Chemistry: Matter and Change
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