Determine the number of hydrogen atoms in the Sun. The mass of the Sun is 2

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Answer 1

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Answer #1

Mass of the sun is 2 x 10^30 kg
70% of this is 0.7 x 2 x 10^30 kg = 1.4 x 10^30 kg
A hydrogen atom consists of one proton of mass 1.67 x 10^-27 kg

No. of hydrogen atoms is 1.4 x 10^30/1.67 x 10^27 = 8.38 x 10 ^56.
N = 8.4 x 10^56 hydrogen atoms

Answer 2

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