Question #50321

How much mass does 7.53 x 1022 molecules of CH4 represent?

Expert's answer

1 mole of any substance has 6.02 x 10^{23} molecules. So, first of all we must find the number of moles of CH_{4}: 0.753 x 10^{23}/6.02 x 10^{23}= 0.1254 moles. Then the mass will be 0.125 moles * 16 g/mole = 2 g

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