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Why we add conc sulphuric acid in mohr salt in the titration of mohr salt against potassium dichromate?
Wiki User
∙ 11y ago
For preparation of standard solution of Mohr salt {FeSO4.(NH4)2SO4.6H2O}, it's necessary to add dilute H2SO4 to prevent the Fe2+ ions of Mohr salt solution from undergoing oxidation (to Fe3+).
Wiki User
∙ 11y ago
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What indicator in titration of sodium carbonate solution against hydrochloric acid would give a complete neutralization?
Litmus paper
What are the uses of the isotopes uranium 238 or potassium 40?
Uranium 238 (depleted uranium) uses: - fertil isotope in some types of nuclear reactors - shield against nuclear radiation - counterweight - material for armors and projectiles - catalyst - additive for glass and ceramics (to obtain beautiful green or yellow colors) - toner in photography - mordant for textiles - additive for the preparation of biological samples for electron microscopy - other minor uses Applications of potassium-40: - minerals dating by the potassium-argon method - radiometric analysis of samples containing potassium
What is the procedure for determining the percentage purity of amino acid sample by sorenson formol titration method?
prepare about 1 to 1.5% solution of amino acid in 100 ml volumetric flask take 10 ml of the sample (amino acid) solution into 250 ml conical flask add phenophtalien indicator and titrate it against 0.1N standard NaOH when pink color appear stop the titration and add formalin untill the pink color disappear again titarte it with standard NaOH till the pink color reappear.
How does the sodium and potassium pump act to maintain the resting membrane potential?
Primary active transport is the process in which ions are moved across cell membranes against the electrochemical gradient using energy supplied directly be ATP. The action of the sodium-potassium pump is an important example of primary active transport.Secondary active transport is indirectly driven by primary transport. In the sodium-potassium pump, by pumping against the gradient, energy is stored in the ion gradient. Then, just as water pumped uphill can do the work as it flows back down, (think water wheel or turbine), a substance pumped across the membrane can do work as it leaks back, propelled downhill along the concentration gradient.
What process uses proteins to move molecules against a concentration gradient?
There are two processes, Exokineses and Endokineses. just to make sure, go to Biology-online.org Then type in these scientific names and see if they're right. TY
Which indicator is used while titrating mohrs salt against potassium dichromate using internal indicator analysis?
ferroin indicator
What is the procedure for the standardization of sodium thiosulfate?
Thiosulfate can be standardised by adding excess potassium iodide solution to a known volume of a standard acidified solution of potassium dichromate, and then titrating the liberated iodine against the sodium thiosulfate solution.http://www.meduniv.lviv.ua/files/kafedry/tokshim/English/Analytical/Manuals_Analytchem/Iodometry.pdf
What is volumetric titration?
Titration of acid against base or vise vesa to detrmin the strenght of supplied unknown solution volumetriclly
Radiometric titration of 110AgNO3 against KCl?
Radiometric titration is "regular" titration, but with the incorporation of a radioactive indicator to monitor the end-point. And that's right from the IUPAC Compendium of Chemical Terminology. If...
Why is phenolphthalein indicator used in the titration of oxalic acid against sodium hydroxide?
Yes. Phenolphthalein can be used as an indicator for the titration of a weak acid (oxalic acid) against strong base (sodium hydroxide).
Why does a colour change takes place while titrating mohr's salt against potassium dichromate?
From orange to (yellowish) green: It is a powerfull oxidant, used to titrate Fe2+ from Mohr's salt to the oxidised form Fe3+ by the following: Cr2O72−(aq) + 14H+ + 6e− → 2Cr3+(aq) + 7H2O
Is methyl orange the indicator used in the titration of na2co3 against hcl solution?
yes it is
What primary standard is used to titrate against potassium hydroxide?
HCl, hydrochloric acid, is the primary standard used to titrate against potassium hydroxide.
What is the Shape of titration curve for complexometric titration?
If we plot the pM (M= concentration of metal ion in the analyte) against the volume of titrant the titration curve takes the sigmoidal shape, plateau in the first part, sharp rise around the equivalence point and then again flat.
What are the best indicator use in titration of weak base against strong acid?
vodka cruisers, the raspberry one.
What is the active transport mechanism by which cells pump sodium and potassium ions against the concentration gradient.?
sodium-potassium pump
What indicator in titration of sodium carbonate solution against hydrochloric acid would give a complete neutralization?
Litmus paper
