Question

convert 12.044*10^22 molecules into number of moles

Answer 1

αиѕωєя :-

$1 \: mole \: = \: 6.022 \times {10}^{23} \: molecules \\ \\ 1 \: molecule \: = \: \frac{1}{6.022 \times {10}^{23} } \: moles \\ \\ 12.044 \times {10}^{22} \: molecules \: = \frac{1}{6.022 \times {10}^{23} } \times 12.044 \times {10}^{22} \\ \\ = > \frac{12.044 \times {10}^{22} }{6.022 \times {10}^{23} } \\ \\ = > \frac{12.044}{6.022} \times 10 \\ \\ = > 2 \times 10 = > 20 \: moles$

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Answer 2

6.022×1023 molecules of sulphur dioxide =1 mole

So, 12.044×1022 molecules of sulphur dioxide =16.022×1023×12.044×1022

=210

0.2 mole

Thus, 12.044×1023 molecules of sulphur dioxide are 0.2 mole.