Why does this reaction have to be carried out above room temperature, and also why below boiling point?
2006-10-19 08:47:03 · 4 answers · asked by snowpatrol161 2 in Science & Mathematics ➔ Chemistry
The reaction is far too slow at room temperature to make titration possible. Too high a temperature and you get thermal decomposition of the manganate (VII) - permanganate if you like.
2006-10-19 23:02:32 · answer #1 · answered by lykovetos 5 · 1⤊ 0⤋
It's to do with the endothermic layer as the permanganate fuses with the acid. It's a tetrohydrocic reaction. Looks like someone's been skipping class!!
2006-10-19 08:50:16 · answer #2 · answered by kate_souter 2 · 1⤊ 1⤋
it somewhat is a reaction between a reliable acid and a powerful base: HNO3 + KOH -> KNO3 + H2O or, in terms of ions: H(+) + ok(+) + NO3(-) + OH(-) -> ok(+) + NO3(-) + H2O As in maximum reactions of this form, the products are a salt (potassium nitrate) and water. in terms of ions, the reactant ions are advantageous hydrogen and potassium cations and damaging nitrate and hydroxide anions. on the products portion of the reaction, there are advantageous potassium cations and damaging nitrate anions. FYI: the Potassium hydroxide must be standardized formerly it somewhat is used in the titration. this is as a results of fact the answer reacts with carbon dioxide in the air, forming potassium bicarbonate. This differences the concentration of the Potassium hydroxide over the years. on the top of the titration, the pH would be practically impartial. maximum reliable acid/base titrations use phenolphthalein as a hallmark.
2016-12-08 17:31:24 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Heat acts as a catalyst.
2006-10-19 08:53:06 · answer #4 · answered by Garry R 2 · 0⤊ 2⤋