When doing a titration experiment, why is it necessary to remove the funnel from the burette before opening the tap?
Any help would be greatly appreciated!
2006-10-12 22:47:54 · 4 answers · asked by the answer chancer 2 in Science & Mathematics ➔ Chemistry
For a couple of reasons;
1.) You need an accurate starting volume to determine how much titrant you add (even a drop from the funnel can throw off your results). If the funnel is sticking in the titrant liquid, its displacement will throw off the reading.
2.) If the funnel is in the titrant liquid, the suction of the liquid going out of the buret will causes a draw on the liquid in the funnel causing the system to seize up and the liquid will stop flowing
2006-10-13 00:29:18 · answer #1 · answered by margincallgentlemen 2 · 1⤊ 0⤋
Because some of the solution will stick into the walls of the funnell this will afect the amount of subsance used in the experment.
2006-10-12 22:56:19 · answer #2 · answered by mtula ikufa 2 · 0⤊ 0⤋
The funnel can alter the reading. This by volume displacement when it touches the liquid, or by airlock if it's not.
2006-10-12 22:54:09 · answer #3 · answered by ladybugewa 6 · 0⤊ 0⤋
There quite is adequate concepts here! you opt for a million mole of NaOH to titrate 1mol of KHP. you have: .8765g / 204.3 g/mol = 0.00429 mols of KHP so as which you have have been given 0.00429 mols of NaOH contained interior the 40 8.6mL which you greater suitable. So... 0.00429 mols / 0.0486 L = 0.0883 M NaOH
2016-11-28 03:08:22 · answer #4 · answered by ? 3 · 0⤊ 0⤋