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In an electrochemical cell a redox reaction perform in two halves. Electrons are liberated by the oxidation half reaction at one electrode and go through an electrical circuit to another electrode where they are used for the reduction. The cell potential E is the potential difference between the two electrodes have to balance the thermodynamic tendency for reaction, so that the cell is in equilibrium and no electrical current flows. E is related to the molar Gibbs free energy change in the overall reaction according to
where n the number of moles of electrons passed per mole of reaction and F is the Faraday constant (9.6485×104 C mol-1).
The nucleus of an atom can be assumed to be spherical. The radius of the nucleus of mass number 7 is given by 1.25x 10 -13 A 1/3 cm Radius of atom is one A. If the mass number
Estimation of hardness of water sample by EDTA
Molecule in itself is electrically stable so it cant act as ligand So that it can acts as the negative and pasitive ligand.
Q. What are the Cationic and neutral ligands? The names of all anionic ligands end in '0' replacing the final 'e' in endings. Sometimes endings are also changed. Thus the given
Polyhydroxy butyrate (PHB) Polyhydroxy butyrate or PHB is acquired from hydroxy butyric acid (3-hydroxy butanoic acid)
Q. Consider a single-phase system that is a gaseous mixture of N 2 , H 2 , and NH 3 . For each of the following cases, find the number of degrees of freedom and give an example of
while gibing the ph and the volume intial and final how do we calculate the number of moles
Determine the alcoholic acidity of the given sample of flour. After undertaking this activity, you will be able to: • assess the acidity the given sample of flour, and •
Q. Objective of elements of group 16? You should be able to: • describe the occurrence, extraction and uses of the elements of Group 16, • describe the allotropic forms o
What will be the mole fraction of 98% pure H2SO4 in 1 liter solution which has density 1.85gm/ml at ntp?
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