MCQ
How many molecules are present in one gram of hydrogen........ $\times {10^{23}}$
- A$6.02$
- ✓$3.01$
- C$2.5$
- D$1.5$
✓
Answer
Correct option: B.
$3.01$
b
(b) $2\,gm$ of hydrogen $ = 6.02 \times {10^{23}}$molecules
(b) $2\,gm$ of hydrogen $ = 6.02 \times {10^{23}}$molecules
$\therefore $ $1\,gm$ of hydrogen $ = \frac{{6.02 \times {{10}^{23}}}}{2} = 3.01 \times {10^{23}}$ molecule.
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