Question

WHAT ARE THE USES OF POTASSIUM TRIOXONITRATE(V)ACID
DrBob222
As far as I know there is no such animal. Perhaps you mean potassium nitrate (the salt, KNO3. potassium trioxonitrate (v)) or the acid (HNO3)
oobleck
google is your friend.
many hits discuss this.
PRAISE
PLEASE I DID NOT UNDERSTAND
DrBob222
oobleck meant for you to go to Google, type in KNO3 or HNO3 or whatever you meant to write the first time, and read about it. oobleck tells you there is ample information there.