what is does rhubarb reacting
Rates and rhubarb. Class practical. In this experiment, rhubarb sticks, which contain oxalic acid, are used to reduce and decolourise potassium manganate(VII) solution. The experiment can be used to show how the rate of reaction is affected by surface area or concentration.f you are not sure, briefly remove the rhubarb and compare the colour of the solution to the beaker of water. When they look the same, stop the timer. d Rinse out and dry the reaction beaker. e Repeat the experiment using the piece of rhubarb cut into 2 (use both halves). Rinse and dry the beaker.