why kcl is used as standard solution?
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KCl Standard Solution is used to calibrate conductivity instruments that read directly in microsiemens (micromhos) or millisiemens (1000 microsiemens). KCI (potassium chloride) is a very stable salt and is an international calibration standard for conductivity measurement.
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KCl solution is like a reservoir of chloride ions.. when the electrode acts as an anode,mercury reacts with these ions and forms mercurous chloride whereas when it acts as a cathode,the mercurous chloride is reduced to mercury and chloride ions are transferred to the KCl layer..
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KCl is a polar compound while benzene is a nonpolar solution...in this case the solute and solvent are not alike in nature causing the insolubility of the KCl in benzene... ... Secondly, the relatively weak VdW forces offered by benzene cannot overcome the strong ionic bonding between K+ and Cl- ions.
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Well-Known Member. Potassium bicarbonate works just fine. The difference is that the carbonate form is a more reactive, more caustic material and so fewer places carry it. The bicarbonate form is "safer" and so much more readily available.
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You can have Kc, Kp, Ksp, Ka, Kb → These are the same as Keq. They just describe specific types of reactions. Completed using Concentrations or sometimes, Partial Pressures • Given: Initial Concentration of Reactants only‐ Products will be zero.
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Standard emf of a cell is the difference in the standard reduction potentials of cathode and anode when no current flows through the cell. For the relationship between standard emf (E∘cell) are equilibrium constant(Kc), consult Section 9.11.
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1 Expert Answer. KCN is the salt of a strong base (KOH) and a weak acid (HCN), and thus the salt in aqueous solution will have a basic pH.
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The key difference between Kc and Kp is that Kc is the equilibrium constant given by the terms of concentration whereas Kp is the equilibrium constant given by the terms of pressure. This equilibrium constant is given for reversible reactions.
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Figure 11.2. 2: As potassium chloride (KCl) dissolves in water, the ions are hydrated. ... When ionic compounds dissolve in water, the ions in the solid separate and disperse uniformly throughout the solution because water molecules surround and solvate the ions, reducing the strong electrostatic forces between them.
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HCL = hydrochloric acid Mistaken as potassium chloride.
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To summarize: Ka * Kb is equivalent to adding the acid and base reactions together, which results in a net equation of the autoionization of water. It's not a neutralization/acid-base reaction, but I think the Kw = Ka * Kb is a mathematical relation made to expedite calculations.
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KCN is the salt of a strong base (KOH) and a weak acid (HCN), and thus the salt in aqueous solution will have a basic pH.
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Kcl has same structure as NaCl. If the volume of the unit cell is 247•7 cubic angstroms, the distance between centres of k+ and Cl- ions is.
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Saline solution consists of saltwater that's pH balanced. Its purpose is to rinse off your contacts. You use it after cleaning and disinfecting and before putting your contacts in. However, saline solution is NOT the same as contact solution.
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Kc is in terms of concentration, so will include aqueous species, mixture of liquids and gases. ... Concentration of a solid is equal to its density which is always a constant term, so it'll just be part of K and therefore not in the K expression.
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Kirchhoff's Current Law, often shortened to KCL, states that “The algebraic sum of all currents entering and exiting a node must equal zero.” This law is used to describe how a charge enters and leaves a wire junction point or node on a wire.
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In patients with diminished renal function, administration of Potassium Chloride in Lactated Ringer's and 5% Dextrose Injection, USP may result in sodium or potassium retention. Potassium Chloride in Lactated Ringer's and 5% Dextrose Injection, USP is not for use in the treatment of lactic acidosis.