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What is true about the amounts of H and OH at the stoichiometric point in a titration of a strong acid with a strong base?
'Stoichiometric' means equal amounts according to the balanced reaction. So at that point you have only water where H+ and OH- conc.'s are equal (1.0*10-7)
Discussion of titration?
Titration is the controlled addition and measurement of the amount of a solution of known concentration required to react completely with a measured amount of a solution of unknown concentration. Titration provides the equivalent volumes of acidic and basic solutions. In order to find this, MaVa/Ca formula needs to be used. In titration, when equal numbers of H3O+ and OH- from the acidic and basic solutions react, the resulting solution is neutral (water and salt). In titration, the end point would be the point at which the indicators change color; in this case the indicator turned pink. The equivalence point would the point at which the two solutions used in titration are present in chemically equivalent amounts. The indicator, phenothaylene, is used to determine the equivalence point of weak-acid/strong- base titrations.
What is the pH of a solution that results from the complete neutralization of an HCl solution with KOH solution?
It depends upon the amount of strong acid that you are using.... in a titration process the pH value initially starts off basic in the beaker.. and doesn't change rapidly until all of the base has reacted with the acid to from water and precipitate ... after all of the weak base has reacted with the acid.. the final PH value is in the acid range i.e 1-7
Why you use oxalate potassium in formol titration?
In formol titration, amino acids with formaldehyde are titrated with NaOH to measure the amount of amino acids in the solution. Potassium is also necessary for this titration and is supplied by using potassium oxalate. If calcium is present, it will react with the NaOH to form Ca(OH)2. This will make it appear to need more of the NaOH solution (and overestimate the titration). Potassium oxalate will chelate the calcium, and prevent it from reacting (forming calcium oxalate).
Why is an acidic titration medium a requirement of the vol hard?
volhard method uses Fe indicator. in the basic solution, Fe ion can precipitate forming Fe(OH)3 ...ete..
When equivalent amounts of H and OH have reacted in a titration?
endpoint
When equivalent amounts of h plus and OH- have reacted in titration?
Endpoint
What is true about the amounts of H and OH at the stoichiometric point in a titration of a strong acid with a strong base?
'Stoichiometric' means equal amounts according to the balanced reaction. So at that point you have only water where H+ and OH- conc.'s are equal (1.0*10-7)
Discussion of titration?
Titration is the controlled addition and measurement of the amount of a solution of known concentration required to react completely with a measured amount of a solution of unknown concentration. Titration provides the equivalent volumes of acidic and basic solutions. In order to find this, MaVa/Ca formula needs to be used. In titration, when equal numbers of H3O+ and OH- from the acidic and basic solutions react, the resulting solution is neutral (water and salt). In titration, the end point would be the point at which the indicators change color; in this case the indicator turned pink. The equivalence point would the point at which the two solutions used in titration are present in chemically equivalent amounts. The indicator, phenothaylene, is used to determine the equivalence point of weak-acid/strong- base titrations.
What is the pH of a solution that results from the complete neutralization of an HCl solution with KOH solution?
It depends upon the amount of strong acid that you are using.... in a titration process the pH value initially starts off basic in the beaker.. and doesn't change rapidly until all of the base has reacted with the acid to from water and precipitate ... after all of the weak base has reacted with the acid.. the final PH value is in the acid range i.e 1-7
Why you use oxalate potassium in formol titration?
In formol titration, amino acids with formaldehyde are titrated with NaOH to measure the amount of amino acids in the solution. Potassium is also necessary for this titration and is supplied by using potassium oxalate. If calcium is present, it will react with the NaOH to form Ca(OH)2. This will make it appear to need more of the NaOH solution (and overestimate the titration). Potassium oxalate will chelate the calcium, and prevent it from reacting (forming calcium oxalate).
What is the equivalent of the god Hephaestus?
Oh who cares anyway!
How many equivalent OH-1 are there in HC2H3O2?
5
What is the balanced chemical equation for magnesium hydroxide is reacted with hydrochloric acid to form a pure sample of magnesium chloride?
Mg(OH)2 + 2HCl >> MgCl2 + 2H2O
How is lime formed?
Quick lime is obtained by heating (calcining) calcium carbonate. If the CaO obtained is reacted with water it produces slaked lime Ca(OH)2
When 2 moles of Mg3N2 are reacted with water how many moles of H2O react to balance?
12 2 Mg3N2 + 12 H2O = 6 Mg (OH)2 + 4NH3
Why is an acidic titration medium a requirement of the vol hard?
volhard method uses Fe indicator. in the basic solution, Fe ion can precipitate forming Fe(OH)3 ...ete..
