7 ग्राम ऑफ नाइट्रोजन कंटेंस हाउ मेनी मॉलिक्यूल
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Answer:
1 gram of hydrogen = 3.02*10^23
so,
7 gram of hydrogen = 3.02*10^23 *7
==21.14*10^23
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Explanation:
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