EASY
Diploma
IMPORTANT
Earn 100

A burette reading is recorded as 27.70±0.05 cm3? Which of the following could be the actual value?

I. 27.68 cm3.II. 27.78 cm3.III. 27.74 cm3.

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Important Questions on Measurement and Data Processing

EASY
Diploma
IMPORTANT
A piece of metallic aluminium with a mass of 10.044 g was found to have a volume of 3.70 cm3. A student carried out the following calculation to determine the density: density g cm-3=10.0443.70. What is the best value the student could report for the density of aluminium?
EASY
Diploma
IMPORTANT
Which experimental procedure is most likely to lead to a large systematic error?
EASY
Diploma
IMPORTANT
Which are likely to be reduced when an experiment is repeated a number of times?
EASY
Diploma
IMPORTANT
Deduce the IHD for codeine using section 37 of the Data booklet.
EASY
Diploma
IMPORTANT
Deduce the IHD for a molecule of molecular formula C5H10N2.