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Q. The equilibrium cell potential of the galvanic cell
is found to be Ecell,eq = 1.410 V at 298.15K. The standard cell potential is Ecell,eq = 1.360V.
(a) Write the cell reaction and calculate its thermodynamic equilibrium constant at 298.15K.
(b) Use the cell measurement to calculate the mean ionic activity coefficient of aqueous HCl at 298.15K and a molality of 0.500 mol kg-1.
When heated calcium hydroxide as well as ammonium chloride reacts to produce water vapor ammonia gas and solid calcium chloride. Presume 5.00g of calcium hydroxide as well as 10.00
Group 1- Alkali Metals The elements of group 1 are commonly known as alkali metals after the alkaline properties of their hydroxides such as NaOH. The atoms have the (ns) 1 e
In a Bohr's model of atom when an electron jumps from n= 1 to n= 3 , how much energy will be emitted or absorbed: (1) 2.15 x10 -11 erg (2) 0.19
The shape of s -orbital is: (1) Pyramidal (2) Spherical (3)Tetrahedral (4)Dumb-bell shaped Ans: Spherical
who discovered fractional distillation
The diffraction of x-ray by a crystal gives 1st order ref at 14•12'' if lattice dist is 3.14 A• wht is the wavelength of x-ray
The electronic configuration of an element is 1s 2 , 2s 2 2p 6 3s 2 3p 6 3d 5 4s 1 . This represents its: (1) Excited state (2) Ground state (3)Cationic for
equivalent mass as an assignment
Every substance poses exact amount of energy known as internal energy or intrinsic energy (E).
a 60.0g sample of water initially at 40.0 degree celcius is heated and converted to steam at 100 degree celcius. how much heat has been supplied to the sample during the pross. giv
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