Question #bc7b6

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Answer 1 · 2018-01-02T14:59:55

Please see the step process below...

Recall;

$n = \frac{N}{k}$ $n = N/(k)$

Where;

$n = no of moles = ?$ $n = "no of moles" = ?$

$N = no of entity in atoms = 12.046 \times 10^{25}$ $N = "no of entity in atoms" = 12.046 xx 10^25$

$k = Avogadros Constant = 6.023 \times 10^{23}$ $k = "Avogadros Constant" = 6.023 xx 10^23$

Therefore...

$n = \frac{12.046 \times 10^{25}}{6.023 \times 10^{23}}$ $n = (12.046 xx 10^25)/(6.023 xx 10^23)$

$n = \frac{12.046}{6.023} \times \frac{10^{25}}{10^{23}}$ $n = 12.046/6.023 xx 10^25/10^23$

$n = 2 \times 10^{25 - 23}$ $n = 2 xx 10^(25 - 23)$

$n = 2 \times 10^{2}$ $n = 2 xx 10^2$

$n = 2 \times 10^{2} or 200 m o l s$ $n = 2 xx 10^2 or 200 mols$