18 grams of glucose contains? a)0.6 atoms of carbon b)0.6 molecules of hydrogen c)0.6 gram molecules of co2 d)1.2 gram atom of hydrogen

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Answer 1 · 2018-02-25T12:56:43

Well, the formula of glucose is #C_6H_12O_6#...

And thus its molecular mass is #180.16*g*mol^-1#...

And an #18*g# mass represents a molar quantity of #(18*g)/(180.16*g*mol^-1)=0.10*mol# with respect to GLUCOSE...

And with respect to hydrogen, there are #1.2*mol#...i.e. a mass of #1.2*molxx1,00*g*mol^-1=1.2*g#...

And with respect to carbon, there are #0.6*mol#...i.e. a mass of #0.6*molxx12.01*g*mol^-1=7.2*g#...

And with respect to oxygen, there are #0.6*mol#...i.e. a mass of #0.6*molxx16.0*g*mol^-1=9.6*g#...

And the sum of the element masses is #{1.2+7.2+9.6}*g=18.0*g#...as is absolutely required for mass equivalence...

And so #d.# is the best answer...