Question

The mass of a proton is 1.6726x10-27 kg. What is this mass in milligrams? a) 1.6726x10^-24 mg

b) 1.6726x10^-30 mg
c) 1.6726x10^-21 mg
d) 1.6726x10^-18 mg

Answer 1

To convert the mass of a proton from kilograms to milligrams, the mass is multiplied by 1,000,000, giving the result of 1.6726×10⁻¹ mg.

Step-by-step explanation:

The question asks us to convert the mass of a proton from kilograms to milligrams. The mass of a proton is given as 1.6726×10⁻²⁷ kg. To convert this to milligrams, we need to know that 1 kg equals 1,000,000 milligrams (mg). Thus, the conversion is as follows:

Multiply the proton's mass by 1,000,000 to convert kilograms to milligrams.
1.6726×10⁻²⁷ kg × 1,000,000 mg/kg = 1.6726×10⁻²¹ mg.

The correct answer is therefore 1.6726×10⁻²¹ mg, which corresponds to option c), showcasing the process of converting units and demonstrating how to express the proton's mass in milligrams through a straightforward conversion method.