The number of molecules of hydrogen in 1 cc of hydrogen gas at NTP.

1.	The number of molecules of hydrogen in 1 cc of hydrogen gas at NTP.
Answer» `2.688 XX 10^(19)` `3.688 xx 10^(19)` `3.688 xx 10^(10)` `2.688 xx 10^(10)` ANSWER :A

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