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Significant Figures of Conversion Factors

Posted: Wed Oct 04, 2017 11:34 am
by Joshua Xian 1D
For conversion factors (including molar masses provided by the periodic table e.g. 12.01 g/mol C), should we assume that they have infinite significant figures and base the number of significant figures in the answer on those of the measured values (e.g. 17.3 m)?

Re: Significant Figures of Conversion Factors  [ENDORSED]

Posted: Wed Oct 04, 2017 2:13 pm
by Stef Newell
The conversion factors are not pieces of data so therefore their precision is irrelevant. In short, only consider the number of digits in the data values you are given.

Re: Significant Figures of Conversion Factors

Posted: Thu Oct 05, 2017 8:06 pm
by snehabhargava
The conversion factors do not count for sig figs because they are exact values and are not measurements that is why it does not matter.

Re: Significant Figures of Conversion Factors

Posted: Fri Oct 06, 2017 5:24 pm
by CalebBurns3L
You are correct in assuming that they have infinite significant figures. They are exact values and therefore their precision is not relevant to the problem; only concern yourself with the sig figs from the pieces of data provided by the problem.