Exercise E1 (Question regarding unit conversions) [ENDORSED]

Nathan Mariano 2G
Posts: 68
Joined: Fri Sep 28, 2018 12:29 am

Exercise E1 (Question regarding unit conversions)

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?

Andrew Bennecke
Posts: 62
Joined: Fri Sep 28, 2018 12:15 am

Re: Exercise E1 (Question regarding unit conversions)

Because the problem was given to us with picometers as the primary source of measurement, I believe that the answer should remain in picometers.

Luis_Yepez_1F
Posts: 50
Joined: Fri Sep 28, 2018 12:18 am

Re: Exercise E1 (Question regarding unit conversions)  [ENDORSED]

If the question does not specify which units to use, then usually you would stick with the unit that is given, so picometers.

Nathan Mariano 2G
Posts: 68
Joined: Fri Sep 28, 2018 12:29 am

Re: Exercise E1 (Question regarding unit conversions)

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?