A 25.00-mL sample of an HN03 solution is titrated with 0.102 M NaOH. The titration requires 28.52 mL to reach the equivalence point. What is the concentration of the HN03 solution?

2h2o2--> 2h2o + o2

this reaction is of the spontaneous decomposition of hydrogen peroxide down into water and oxygen.

add 2 molecules of hydrogen peroxide and 2 molecules of water. since oxygen is naturally diatomic, the total number of atoms of each element is now the same on both sides of the equation so it is balanced.

this may not be entirely correct but let me know.

the product of the pressure and volume is also constant