Answers

2016-04-14T09:02:15+05:30
64 grams contains 6.023*10²³ molecules
1.28 grams contains ..................

molecules  = 1.28*6.023*10²³/64
molecules  = 1.2046*10²²
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2016-04-14T09:51:07+05:30
64gm = 6.023*10²³ molecules 1.28 grams contains molecules = 1.28*6.023*10²³/64 molecules = 1.2046*10²² PLZ MARK AS A BRAINLIEST. I NEEDED PLZ MARK AS A BRAINLIEST.
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