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Aneli [31]
3 years ago
15

Convert 2.39 x 1022 molecules of water into moles of water

Chemistry
1 answer:
torisob [31]3 years ago
6 0

Answer:

0.0397\ \text{mol}

Explanation:

Number of molecules of water = 2.39\times 10^{22}

N_A = Avogadro's number = 6.022\times 10^{23}\ \text{mol}^{-1}

Number of moles is given by

\dfrac{2.39\times 10^{22}}{6.022\times 10^{23}}

=0.0397\ \text{mol}

The number of moles of water is 0.0397\ \text{mol}.

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How much ch2o is needed to prepare 445 ml of a 2.65 m solution of ch2o?
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