Answer:
I am not 100% sure but I think it is 26.981538
Explanation:
<span>FeCl3+ H2O --> Fe(OH)3 + 3 HCl the reaction will cause the least temprature change</span>

1 mole of glucose : 6 moles of oxygen
First calculate the number of moles of oxygen in 10 g:

1 mole of glucose reacts with 6 moles of oxygen
x moles of glucose reacts with 0.3125 moles of oxygen

Now calculate the mass of 5/96 moles of glucose.

The maximum mass of glucose that can be burned in 10 g of oxygen is 9.375 g.