Number of molecules in a given mass of a substance

1. A.
   $6.022 \times 10^{22}$
2. B.
   $5.419 \times 10^{22}$
3. C.
   $4.312 \times 10^{22}$
4. D.
   $9.933 \times 10^{22}$

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1. A.
   $1.5055 \times 10^{24}$
2. B.
   $1.5055 \times 10^{23}$
3. C.
   $3.011 \times 10^{24}$
4. D.
   $3.011 \times 10^{23}$

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1. A.
   $6.022 \times 10^{23}$
2. B.
   $3.011 \times 10^{23}$
3. C.
   $1.505 \times 10^{22}$
4. D.
   $7.527 \times 10^{22}$

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