Answer :
Answer:
[tex]8.36541\times 10^{56}[/tex]
Explanation:
Mass of the sum = [tex]2\times 10^{30}\ kg[/tex]
70% of this mass is
[tex]0.7\times 2\times 10^{30}=1.4\times 10^{30}\ kg[/tex]
Mass of hydrogen in the sun is [tex]1.4\times 10^{30}\ kg[/tex]
Mass of a hydrogen atom = [tex]1.6735575\times 10^{-27}\ kg[/tex]
Dividing the mass hydrogen in the sun by the mass of one hydrogen atom will give us the number of hydrogen atoms
[tex]\frac{1.4\times 10^{30}}{1.6735575\times 10^{-27}}=8.36541\times 10^{56}[/tex]
The number hydrogen atoms in the Sun is [tex]8.36541\times 10^{56}[/tex]