So nonelectrolytes consist of molecular or covalent compounds that don't dissociate into ions. Here we have a good example of glucose solid. Even after placing it in water, it doesn't break up. It's still altogether as glucose, But it's still being surrounded by water, so you can still say it's aqueous. Now examples of other non-electrolytes include water, sugars like glucose, and alcohols, and other non-ionic compounds. Now when I say sugars, sugars are just compounds with the molecular formula of CnH2nOn. Okay? So here glucose we saw C6H12O6. Sucrose deviates a little bit from this. Sucrose is C12H22O11. Glucose and sucrose are the most famous of the sugars that you'll most likely see when dealing with non-electrolytes.
Alcohols are just covalent compounds with carbon and hydrogen connected to OH. Methanol is CH3OH. Phenol is C6H5OH. A key thing to recognize in alcohol is that they end with the word "ol". Methanol, phenol. Now, we've talked about strong electrolytes. We've talked about weak electrolytes. But what about non-electrolytes? Now, their degree of dissociation is: they don't dissociate, so we're going to say no dissociation. They don't break up into ions at all, so it's only molecules. And because they don't break up into ions at all, they don't conduct electricity. Sucrose is a great example besides glucose as being nonelectrolyte. Here we have an alcohol in the case of methanol. We also have these other structures here. We have water, hydrogen peroxide. We also have CH4N2O, which is just an example of a molecular or covalent compound. So just remember, non-electrolytes don't break up into ions whatsoever, and therefore, they cannot conduct electricity like strong and weak electrolytes can.