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OpenStudy (agentjamesbond007):
The sun is composed mostly of hydrogen. The mass of the sun is 2.0x10^30 kg, and the mass of a hydrogen atom is 1.67x10^-27 kg. Estimate the number of atoms in the sun.
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OpenStudy (anonymous):
2.0*10^30 kg * 1 atom/1.67*10^-27 kg = 1.1976*10^57 atoms
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