Of the following, __________ is the smallest mass. A)25 kg B)2.5 × 10^-2 mg C)2.5 × 10¹⁵ pg D)2.5 × 10⁹ fg E)2.5 × 10¹⁰ ng

Question

Quizplus · Accepted Answer

To compare the masses, we need to convert them all to the same unit. 
- 25 kg is already in the base unit, no need to convert. 
- 2.5 × 10^1​2 mg = 25 kg 
- 2.5 × 10^15 pg = 2.5 × 10^-3 kg 
- 2.5 × 10^19 fg = 2.5 × 10^-11 kg 
- 2.5 × 10^10 ng = 2.5 × 10^-5 kg

Therefore, the smallest mass is in femtograms, which is D: 2.5 × 10^19 fg.

Of the Following, __________ Is the Smallest Mass