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In exercise E.1, I multiplied 6.022 x !0^23 to 288 picometer and received a final answer of 1.73 x 10^26 picometers. Is it necessary to change the final answer from picometers to meters or kilometers? If so, why?
Because the problem was given to us with picometers as the primary source of measurement, I believe that the answer should remain in picometers.
If the question does not specify which units to use, then usually you would stick with the unit that is given, so picometers.
The Student Solutions Manuals shows that the answer (1.73 x 10^26 picometers) must be converted to meters and then kilometers. However, the Student Solutions Manual does not state why. Will we lose points on the test if we convert an answer to the wrong units?
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