The following reaction occurs in pure water: h2o(l) + h2o(l) h3o+(aq) + oh-(aq) which is often written as h2o(l) h+(aq) + oh-(aq) and has a value of ∆g° = 79.9 kj/mol at 25.0°c. calculate the value of ∆g for this system under the following conditions at 25°c and 1 atm. [oh-] = 2.5×10-1m [h+] = 9.5×10-1m.

When hydrogen peroxide (h2o2) is added to potassium iodide (ki) solution, the hydrogen peroxide decomposes into water (h2o) and oxygen (o2). the chemical equation for the decomposition reaction is: 2h2o2—> 2h2o + o2. what is the role of the potassium iodide in this reaction? a. reactant. b. product. c. precipitate. d. catalyst.