One method of determining the concentration of hydrogen peroxide (H2O2) in a solution is through titration with the iodide ion. The net ionic equation for this reaction is
H2O2 + 21° +2H+ + 12 + 2H2O
A 28.70 mL sample of a hydrogen peroxide solution is found to react completely with 25.57 mL of a
0.1500 M Kl solution. What is the concentration of hydrogen peroxide in the sample?

Calculate - analysis of compound composed of iron and oxygen yields 174.86 of fe and 75.14g of o. what is the empirical formula for this compound?

Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.

What does a numerical subscript following an element in a chemical formula mean?