In one mole of glucose, how many oxygen atoms are present?

1 Answer
Jul 2, 2017

Answer:

In glucose, #C_6H_12O_6#.....I gets #180.16*g# of glucose.

Explanation:

#"Moles of oxygen atoms"# #=# #6xx"moles of glucose"#. Why? Because CLEARLY, each mole of glucose, #C_6H_12O_6# contains #6*mol# oxygen atoms.

Note that I am labouring the point that we deal with OXYGEN ATOMS , NOT OXYGEN MOLECULES.

#96*g# oxygen is a molar quantity of #(96*g)/(16*g*mol^-1)=6*mol# with respect to oxygen atoms.

And of course if there are #6*mol# oxygen atoms, there must be #1*mol# glucose. Agreed?

We are not quite finished because we were asked for the mass, and so we multiply the molar quantity by the molar mass of glucose.....

#1*molxx180.16*g*mol^-1=180.16*g#.

Capisce?