Question

the mass of the sun is 1.98 x 10^33 grams, If a single proton has a mass of 1.6 x 10^-24 grams how many protons are in the sun.

Answer 1

1 proton have a mass of 1.6x10^-24g
x proton have a mass of 1.98x10^33g

=> x = 1.98x10^33/1.6x10^-24= 1.2375x10^57 proton