Find the number of moles of oxygen atoms present in 1-2 - 1026 atoms of oxygen-Given- NA - 6 - 1023

Number of moles = Number of atoms/Avogadro number =1.2× 10^26/6×10^23 = 200 moles ...

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Standard XI

Chemistry

Mole Concept

Find the numb...

Question

Find the number of moles of oxygen atoms present in $1.2 \times 10^{26}$ atoms of oxygen.
(Given: $N_{A} = 6 \times 10^{23}$ )

100

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200

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100 N_{A}

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200 N_{A}

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Solution

The correct option is B 200
Number of moles $= \frac{N u m b e r o f a t o m s}{A v o g a d r o n u m b e r} = \frac{1.2 \times 10^{26}}{6 \times 10^{23}} = 200 m o l e s$

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Find the number of moles of oxygen atoms present in 1.2×1026 atoms of oxygen. (Given: NA=6×1023)

The correct option is B 200Number of moles =Number of atomsAvogadro number=1.2×10266×1023=200 moles

Find the number of moles of oxygen atoms present in $1.2 \times 10^{26}$ atoms of oxygen.
(Given: $N_{A} = 6 \times 10^{23}$ )

The correct option is B 200
Number of moles $= \frac{N u m b e r o f a t o m s}{A v o g a d r o n u m b e r} = \frac{1.2 \times 10^{26}}{6 \times 10^{23}} = 200 m o l e s$