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Why electrolyte concentration is added more than analyte in polarography?
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Why does voltage in water go down when salt is added?
Sodium chloride is an electrolyte.
Difference between iodometry and iodimetry?
When an analyte that is a reducing agent is titrated directly with a standard iodine solution, the method is called "iodimetry". When an analyte that is an oxidizing agent is added to excess iodide to produce iodine, and the iodine produced is determined by titration with sodium thiosulfate, the method is called "iodometry".
Why KI is added in redox iodometric titration even in the presence of sodium thiosulfate as a reducing agent?
In iodometric titrations sodium thiosulfate is the titrant whereas the KI will reduce the analyte; eg: Cu2+ to Cu+. The I2 produced is then titrated by the sodium thiosulphate. Cu2+ + I- --> CuI + I3- I3- + 2 S2O32- ¾® 3 I- + S4O62- To answer your question: KI (reducing agent) is added to generate the iodine by the reduction of the analyte (Cu2+) The formed iodine is then back-titrated with thiosulfate (titrant) to determine the amount of analyte originally present. As you can see the KI and sodium thiosulfate serve two different purposes. KI improves solubility of Iodine
Salt plus water?
Salt added to water form a solution, an electrolyte.
When more solvent is added to a solution what happens to the concentration?
The solution becomes more diluted and the concentration gets higher.
What is titrant and analyte?
Analyte: the substance to be analyzed by titration. Titrant: the substance (with a known concentration) added to the analyte solution to perform a titration.
Is the indicator generally added to the titrant or analyte in a titration?
Analyte is the indicator that is generally added in titration.
Is the indicator generally added to the titrant or the analyte in a titration?
Analyte is the indicator that is generally added in titration.
Is the indicator generally added to the titrant or the analyte in titration?
Analyte is the indicator that is generally added in titration.
How would your results have differed if you had over titrated added Na OH beyond the endpoint?
Due to the addition of more NaOH than was necessary to reach the endpoint of the titration, the recorded data would show NaOH at a higher concentration, and whatever other chemical in solution (the analyte of the titration) to appear at a lower concentration. If recording the amount of mL of the titrant added to the analyte to reach the end-point of the titration, it would cause the recorded mL needed to be higher than the true amount needed.
What is ionization suppressor?
An ionization suppressor is a salt of an alkali metal added to suppress ionization of an analyte. The alkali metal is easily ionized resulting in a flux of electrons which shift the ionization equilibrium of analyte towards formation of atoms.
What is over-titration?
over titration is when too much titrant is added to the analyte in a titration procedure.
How can you increase the electrolyte in a Gatorade?
you can usually increase the electrolyte with some salt or some other energy drink added in to it.
When excess of an electrolyte is added to a colloid it.....?
This phenomenon is caled destabilization.
What is the equivalence point of titration?
The equivalence point, or stoichiometric point, of a chemical reaction is the point at which an added titrant is stoichiometrically equal to the number of moles of substance (known as analyte) present in the sample: the smallest amount of titrant that is sufficient to fully neutralize or react with the analyte.
Why does voltage in water go down when salt is added?
Sodium chloride is an electrolyte.
What is blank titration?
Types of titrations 1. Direct titration: analyte + titrant → product 2. Blank titration: titration of a solution not containing the analyte (check for errors) If the endpoint is unclear, we can use a . . . Back titration a. Excess of standard solution is added to analyte (and they react) - Step 1 b. A second standard titrates the excess (unreacted) standard - Step 2 Step 1: analyte + reagent 1 → product + excess reagent 1 Step 2: excess reagent 1 + reagent 2 → product
