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Two chemistry related questions.? Answered

I have three chemistry questions.
1) What is my result when I mix baking powder(NOT sodium bicarbonate)and vinegar?
2) What is the result when one burns steel wool? Is Iron Oxide my end result?
3) When mixing vinegar and baking soda if I were to keep the mixture under pressure would the water and co2 stay as carbonic acid or still decompose into h2o and co2?



9 years ago

 1) If I'm correct, you have 2 reactions going on here: baking powder is a mix of sodium bicarbonate and tartaric acid. When you add water, (a component of vinegar) the tartaric acid and bicarbonate are allowed to mix causing CO2 and sodium tartrate to form. the vinegar also reacts with the baking soda to form CO2 and sodium acetate.
2) A form of iron oxide, yes. iron has many oxidation states meaning it can have different numbers of oxygen atoms (or any chemical) hooked to it. The form of iron oxide formed from burning steel wool is Fe2O3 or iron (III) oxide.
3) Carbonic acid is unstable. (like hydrogen peroxide) Depending on the concentration needed, it is either possible or impossible for the average chemist. For low concentrations, start a reaction between yeast and sugar. the yeast will create ethanol and CO2. bubble the CO2 through a pipe and into a glass jar of water or, for better results, hydrogen peroxide.  It is preferable to have a gas diffuser on the end. for higher concentrations, reach for the sky! (literally!) Concentrated Carbonic acid has only been made in space! Therefore, it is not accessable to you average chemist.
Also, carbonic acid will loose it's power over time.