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Multiple Choice Question:

A cubical grain of salt has a side of .12 mm. If this particular salt has a density of 20 g/cc, what is the mass of this grain of salt?

(A) 34 g             (B) 3.456 x 10-5   
(C) 3 x 10-5 g       (D) 30 g           

Solution:

  C   

If you didn't get this one right, make a note to try problem 2 again and rework Numbers in Science.

Next Try It Out Problem.