The mass of a proton is 1.67 × 10^-27 kg. What is the mass of a proton in nanograms? A) 1.67 × 10^-²¹ ng B) 1.67 × 10^-¹⁸ ng C) 1.67 × 10^-¹⁵ ng D) 1.67 × 10^-¹² ng

Question

Quizplus · Accepted Answer

To convert kg to ng, we need to multiply by 10^12 because there are 10^9 nanograms in 1 gram and 10^3 grams in 1 kilogram.

So,

mass of proton in ng = (1.67 × 10^-27 kg) x (10^12 ng/kg) 
= 1.67 x 10^-15 ng

Therefore, the mass of a proton in nanograms is 1.67 × 10^-15 ng, which is closest to choice C: 1.67 × 10^-15 ng.

The Mass of a Proton Is 1