How many molecules are in 5.35 moles of $H_2O$ ?

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Answer 1 · 2016-04-20T05:55:45

$3.22×10^24$ molecules $H_2O$

Avogadro's number states that every mole has
$6.022⋅10^23$ atoms (or molecules, depending on the substance).

So to figure this out you have to assume that $1 mol H_2O = 6.022×10^23$

So set up a conversion.

$5.35mol$ $H_2O$ ( $6.022×10^23$ molecules / 1 $mol$ )
$1 Mol$ cancels out with $mol H_2O$ .

$5.35×6.022×10^23=3.22×10^24$ molecules of $H_2O$

How many molecules are in 5.35 moles of H_2OH_2O?