Question #f0b2c

1 Answer
Mar 24, 2017

Answer:

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Explanation:

Avogadro constant is defined as the number of molecules present in one mole of compound.

One mole of water is #18# grams.

Since #3.0 * 10^(-21)# grams contain #200# molecules, it follows that #18# grams should have

#18 cancel("grams") xx 200/(3 xx 10^(-21) cancel("grams")) = 12 xx 10^23#

Which shows something is wrong with the question because Avogadro's constant is #6.02 * 10^(23)#.