Question

what is the mass of 2.5 mole of oxygen​

Answer 1

Answer:

2.5 gram atoms means 2.5 moles of o2

for 1 mole - 16 gram

then 2.5 mole - 16×2.5

= 40

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Answer 2

Explanation:

from here just multiply 2 by 31.9988g because there are two moles so the answer is63.9976

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