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Q. How to determine wavelength of electromagnetic waves? The frequency as well as velocity of a wave determines its wavelength the distance between equivalent points on a con
If the atomic weight of an element is 23 times that of the lightest element and it has 11 protons, then it contains : (1)11 protons, 23 neutrons, 11 electrons (2)11 protons,
Electron affinity : In a system of a neutral atom and an extra electron, when the additional electron is attracted from the infinity to the outer orbit of the neutral atom, the wo
How much NaCl is needed to prepare a 0.5 solution of 5 Ltires?
while gibing the ph and the volume intial and final how do we calculate the number of moles
Q. What are ion selective membranes used in electro dialysis of brackish water. Give examples. Ans. Electro dialysis for brackish water: The ion selective membranes are use
What was the calculated ?H value obtained for the reaction NH3 + HCl –› NH4Cl using the thermodynamic data in your lab procedure? The thermodynamic data is: •?H°f for NH3 (aq) = -
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Polarity and salvation A solvent is a liquid medium in which dissolved are known as solutes. Solvents are useful for storing species that would otherwise be in inconvenien
The maximum number of unpaired electron can be present in d orbitals are: (1) 1 (2) 3 (3) 5 (4) 7 Ans: 5
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