How many moles of oxygen are there in 1-20- 10 22 oxygen molecules-

1 mole of oxygen= 6.023 × 10^23 molecules ∴ 1.20 × 10^22 molecules =1.2× 10^226.023 × 10^23 #160; #160; #160; #160; #160; ...

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Standard XII

Chemistry

Ideal Gas Equation

How many mole...

Question

How many moles of oxygen are there in $1.20 \times 10^{22}$ oxygen molecules?

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Solution

$1$ mole of oxygen= $6.023 \times 10^{23}$ molecules
$∴ 1.20 \times 10^{22}$ molecules $= \frac{1.2 \times 10^{22}}{6.023 \times 10^{23}}$
$= 0.199 \times 10^{- 1}$
$= 0.0199$ moles

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How many moles of oxygen are there in 1.20×1022 oxygen molecules?

1 mole of oxygen= 6.023×1023 molecules∴1.20×1022 molecules=1.2×10226.023×1023 =0.199×10−1 =0.0199 moles

How many moles of oxygen are there in $1.20 \times 10^{22}$ oxygen molecules?

$1$ mole of oxygen= $6.023 \times 10^{23}$ molecules
$∴ 1.20 \times 10^{22}$ molecules $= \frac{1.2 \times 10^{22}}{6.023 \times 10^{23}}$
$= 0.199 \times 10^{- 1}$
$= 0.0199$ moles