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equivalence point वाक्य

"equivalence point" हिंदी मेंequivalence point in a sentence
उदाहरण वाक्यमोबाइल
  • :* But I already demonstrated ( in paragraph 5 ) that I was capable of applying this knowledge to finding the pH at the specific half-equivalence point.
  • Halfway between each equivalence point, at 7.5 mL and 22.5 mL, the pH observed was about 1.5 and 4, giving the pK a.
  • Obviously the big jump in the pH 8 range is considered an equivalence point, but does the little'hump'/ activity in the 2-4 range mean anything?
  • This change in slope marks the equivalence point, in the same way that, for instance, the sudden change in pH marks the equivalence point in an acid-base titration.
  • This change in slope marks the equivalence point, in the same way that, for instance, the sudden change in pH marks the equivalence point in an acid-base titration.
  • I analyze a titration curve, finding the equivalence point of a reaction between aqueous acetic acid ( weak ) and sodium hydroxide ( strong ) to be pH ~ 8.3.
  • Titration curves corresponding to weak bases and strong acids are similarly behaved, with the solution being acidic at the equivalence point and indicators such as methyl orange and bromothymol blue being most appropriate.
  • Because the alkalinity is measured with respect to the CO 2 equivalence point, the dissolution of CO 2, although it adds acid and dissolved inorganic carbon, does not change the alkalinity.
  • Since this is a different species with different diffusion characteristics ( and different half-reaction ), the slope of current versus added titrant will have a different slope after the equivalence point.
  • Small increments in volume should be added near the equivalence point which is found graphically by noting the burette reading corresponding to the maximum change of emf or pH per unit change of volume.
  • In natural conditions, the dissolution of basic rocks and addition of ammonia [ NH 3 ] or organic amines leads to the addition of base to natural waters at the CO 2 equivalence point.
  • Because of this, a small change in titrant volume near the equivalence point results in a large pH change and many indicators would be appropriate ( for instance litmus, phenolphthalein or bromothymol blue ).
  • The extra steps in iodometric titration may be worth while because the equivalence point, where the blue turns a bit colourless, is more distinct than some other analytical or may be by volumetric methods.
  • Up through the half equivalence point, Pb ( NO 3 ) 2 �Pb ( OH ) 2 predominates, then after this point Pb ( NO 3 ) 2 ?Pb ( OH ) 2 is formed.
  • The equivalence point on the graph is where all of the starting solution ( usually an acid ) has been neutralized by the titrant ( usually a NaOH solution has been titrated into the oxalic acid solution.
  • Therefore, one can easily find the pK a of the monoprotic acid by finding the pH of the point halfway between the beginning of the curve and the equivalence point, and solving the simplified equation.
  • If one reagent is a weak acid or base and the other is a strong acid or base, the titration curve is irregular and the pH shifts less with small additions of titrant near the equivalence point.
  • The second acid dissociation constant, however, is the point halfway between the first equivalence point and the second equivalence point ( and so on for acids that release more than two protons, such as phosphoric acid ).
  • The second acid dissociation constant, however, is the point halfway between the first equivalence point and the second equivalence point ( and so on for acids that release more than two protons, such as phosphoric acid ).
  • This method consists in the introduction of appropriate indifferent dyes into the reaction system, capable of improving the contrast of the color transition of the indicator at the equivalence point and, thus, to increase the sensitivity of titrimetric determinations.
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