How many moles of oxygen would contain 1.204 x 1024 molecules?

[Avogadro's constant (NA) = 6.02 x 1023]

  • A 1
  • B 2
  • C 3
  • D 4
waec 2016chemistry

The correct answer is B. 2

6.02 x 1023 molecules is 1mole

1.204 x 1024 molecules will be......

\(\frac{1.204 \times 10^24 \times 1}{6.02 \times 10^23}\)

\(\frac{1.204 \times 10}{6.02}\) = \(\frac{12.04}{6.02}\) = 2moles

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