-4
$\begingroup$

I read in my textbook that N2O5 can be prepared by reaction of HNO3 and P4O10 . A product HPO3 is also formed.

Then while discussing oxoacids of phosphorus , it said that metaphosphoric acid exists only in polymeric form.

So is there a contradiction ?

$\endgroup$
3

1 Answer 1

0
$\begingroup$

$\ce{HPO3}$ is an empirical formula for a material that is indeed polymerized. Phosphoric acid is actually any of several acids containing phosphorus(V); the formula $\ce{HPO3}$ represents a limiting case for long chains, or cycles containing a finite number (at least three) of $\ce{HPO3}$ units.

What is often called phosphoric acid, the monomer $\ce{H3PO4}$, is technically orthophosphoric acid.

$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.