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Calculate the number of particles in 8grams of oxygen molecule

User Aemus
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Moles of oxygen = mass/molar mass of O2 = 8/31.998 = 0.25 moles.

Number of particles = moles x 6.02 x 10^23 = 0.25 x 6.02 x 10^23 = 1.505 x 10^23 particles.

Hope this helps!
User Kyle Cureau
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