Question 6
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The composition of universe is approximately 90% hydrogen and 10% helium, by weight. The composition
represents that
There are 18 hydrogen atoms in the universe per atom of helium
There are 9 hydrogen atoms in the universe per atom of helium
There is 4.5 g hydrogen in the universe per gram of helium
The average molar mass of universe is 2.20 g per mole
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what should we find in this please tell me
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