Question

calculate the number of moles in 10 kg of oxygen gas

Answer 1

Atomic mass of oxygen= 16 u

Therefore, mass of oxygen gas=2×16

=32 g

Given mass=10 k=10×1000 g=10000 g

We know,

Number of moles

=Given mass÷Atomic mass

=10000÷32=312.5 moles

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