PistolSlap

 

+1, John.

 

I can't see how someone can have got this far in organic (or any other sort) of chemistry and be unable to balance a reaction equation.

 

 

Apparently you don't understand how Universe works.

 

Perhaps you have no idea what you were doing. You might want to figure that out first.

 

Exactly what good comes from mocking me?

A person comes looking for help and is subject to mockery and sarcasm. Well fuck off, I don't need this. Thanks for nothing.

You can't calculate the limiting reagent with negative numbers in the equation.

But then again, how could you have negative numbers there in the first place?

I grant you that the arithmetic works- but what's the physical meaning of minus 2 glucose molecules?

You might find the name of the product to be something of a hint when balancing this.

i dont get it!!! i got the negative numbers by inputting the formula into a equation balancer. what it told me is that the negative number means that value is on the wrong side and the equation actually goes: "acetic anhydride = glucose + glucose pentaacetate" which i have no idea what that means or how do i calculate a limiting reagent from the two chemicals I added together to get glucose pentaacetate?

I did an experiment in which I added 0.2116 mols acetic anhydride to 0.0222 mols glucose to form 0.0178 mols glucose pentaacetate.

I am attempting to calculate the limiting reagent, but I can't balance the equation properly!
What I get is:
15 C4H6O3 + -2 C6H12O6 = 3 C16H22O11

How am I supposed to calculate a limiting reagent with negative numbers?

Thanks!