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Use activities to calculate the electrode potential of a hydrogen electrode in which the electrolyte is 0.0100 M HCl and the activity of H2 is 1.00 atm.
Ecell= K + 0.05916/0.0100 log (H+)Concentration of HCl = 0.0100 MActivity coefficient of H+ = 0.913Pressure of H2 = 1.00 atmEcell = 0.913 + (0.05916/0.0100) log (H+) 11.2= 0.93 +...
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What do you mean by electrode potential and how the trends of the electrode potentials vary across the first series of the transition metals ?
STANDARD POTENTIAL (normal potential), the value of the electrode potential measured under standard conditions relative to the selected reference electrode (standard electrode). The electronic potential in a number of metals...
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explain why 0.20 M solutions of hydrobromic acid and hydrochloric acid have the same pH values but 0.20 M solutions of oxalic acid and hydrochloric acid have different pH values.
pH is a measure of how much hydrogen or hydronium ions of a substance dissociates in water. In HCl and HBr, given constant concentration, there is an equal or almost...
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why in PH titration we do not use referance electrode ?it just PH electrode as indecator electrode please explain that .
Most often used pH electrodes are glass electrodes.Typical model is made of glass tube ended with small glass bubble. Inside ofthe electrode is usually filled with buffered solution of chlorides...
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In electrochemical test, the double layer capacitor occurs between two electrodes? Does this occur between counter and working electrode or reference and working electrode?
Yes, in electrochemical test, double-layer capacitors occur between two electrodes. An electrochemical double layer capacitor is an energy storage system based on electrostatic effects that occur between two carbon electrodes...
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What do you mean by electrode potential and how the trends of the electrode potentials vary across the first series of the transition metals
STANDARD POTENTIAL (normal potential), the value of the electrode potential measured under standard conditions relative to the selected reference electrode (standard electrode). The electronic potential in a number of...
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Electrode potential of Standard hydrogen electrode is 0. Still is used as a primary referance electrode. justify.
It's the same reason why 0 on the Celsius scale coincides with the melting point of water - we need a common baseline against which we can compare the temperature...
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Compute for the [PO4 ^3-] of a 0.025M H3PO4 solution
The acidity constants of H3PO4 are the following:1) H3PO4 = H+ + H2PO4- Ka1 = 7.25*10-32) H2PO4- = H+ + HPO42- Ka2 = 6.31*10-83) HPO42- = H+ + PO43- Ka3...
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Give two differences that you would observe in the electrolytic cell if copper electrode was made the anode and graphite electrode was made the cathode
(P1*V1) / T1 = (P2*V2) / T2 756 mmHg = 100791.432 Pa 508 mmHg = 67727.576 Pa 30 C = 303 K -31 C = 242 K (100791.432 Pa *...
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which of the listed acids are weak acids:
Sulfuric acid
Hydrosulfuric acid
Phosphouric acid
Hydrobromic acid
Nitric acid
Nitrous acid
Perchloric acid
Weak Acid from the given Acid are =1. Hydrosulfuric Acid.2. Phosphouric Acid.3. Nitrous Acid.Above All are consider as weak acid.Rest 4 Acid consider as Strong Acid ( Sulfuric Acid ,...
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