moles of C2H6 in 3.75x10 ^23 molecules of C2H6

To determine the moles of C2H6 from the number of molecules, we use the avogadro's number to relate moles into molecules. From avogadro's number, 1 mol is equal to 6.022x10^23 molecules.

3.75x10 ^23 molecules C2H6 (1 mol / 6.022x10^23 molecules ) = 0.6227 mol C2H6

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BarrettArcher BarrettArcher · Answer 2 · 2019-03-14T19:55:14+01:00

Answer : The number of moles of [tex]C_2H_6[/tex] is, 0.622 moles

Solution :

As we know that,

1 mole contains [tex]6.022\times 10^{23}[/tex] number of molecules.

As, [tex]6.022\times 10^{23}[/tex] number of molecules of [tex]C_2H_6[/tex] present in 1 mole of [tex]C_2H_6[/tex]

So, [tex]3.75\times 10^{23}[/tex] number of molecules of [tex]C_2H_6[/tex] present in [tex]\frac{3.75\times 10^{23}}{6.022\times 10^{23}}=0.622[/tex] mole of [tex]C_2H_6[/tex]

Therefore, the number of moles of [tex]C_2H_6[/tex] is, 0.622 moles