Avogadro's number is $6 \times 10^{23}$. Number of molecules in $0.5$ moles is

Avogadro's number is $6 \times 10^{23}$. Number of molecules in $0.5$ moles is
  1. $3 \times 10^{23}$
  2. $1.2 \times 10^{24}$
  3. $3 \times 10^{22}$
  4. $6 \times 10^{22}$

Solution

$6 \times 10^{23} \times 0.5 = 3 \times 10^{23}$.

Asked in: NSO

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