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Applications of potentiometry:
One of the most common and earliest applications of potentiometry is pH determination, and titration for the determination of electro active species. Through development of electrodes that selectively determine target ions, potentiometry in general is replacing many older, most expensive and time consuming method for analytically measuring and monitoring ion activity. Current developments in the ion selective electrodes (ISE) branch of potentiometry have made the monitoring of inorganic, organic, gaseous and biologically important ions possible. The flexibility in available configurations allows these ions to be monitored in a single sample solution (batch mode) or continuously in a flow through apparatus (flow-injection analysis).
In order to determine the standard electrode potential of an electrode, the electrode in standard conditions is connected to standard hydrogen electrode (SHE) to constitute a cell.
2p orbitals have : (1) n=1, l=2 (2) n=1, l=0 (3) n=2 l=1 (4)n=2, l=0 Ans: n=2 l=1
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An element X with the electronic configuration 1s 2 , 2s 2 , 2p 6 , 3s 2 , would be expected to form the chloride with the formula: (1) XCl 3 (2) Xcl 2 (3) XCl
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A sample of gas occupies 10l under a pressure of 1atm. what will be its volume if the pressure is increased to 2atm ? assuming that temperature of the gas sample does not change
This of the following is an electrovalent linkage: (1) CH 4 (2) MgCl 2 (3) SiCl 4 (4) BF 3 Ans: MgCl
Q)why is the extraction of copper from pyrites more difficult than that from its oxide ore through reduction? Ans) The Standard free energy of formation of Cu2S is greater than
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