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How many moles are in 7.36 x 1025 molecules of H2O?

Sagot :

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Answer:

There are 122.1982401 moles of  H2O in [tex]7.36*10^{25}[/tex]  molecules of H2O

Explanation:

We know,

[tex]6.023*10^{23}[/tex]  molecules of H2O contains 1 mole H2O

            1      molecules of H2O contains [tex]\frac{1}{6.023*10^{23}}[/tex]  mole H2O

∴ [tex]7.36*10^{25}[/tex] molecules of H2O contains [tex]\frac{1}{6.023*10^{23}}*(7.36*10^{25})[/tex] moles of H2O

                                                               = 122.1982401 moles of  H2O

∴ There are 122.1982401 moles of  H2O in [tex]7.36*10^{25}[/tex]  molecules of H2O

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