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Q. Write electron configuration for a neutral atom of silicon? Writing Electron Configurations by means of Noble-Gas Notation Use noble-gas notation to write the electron confi
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DISAVANTAGES OF FLAME AAS
Calculate the total heat (in J) needed to convert .777 moles of gaseous ethanol at 300 degrees C and 1 atm to liquid ethanol at 25 degrees C and 1 atm. Extra info: b.p. 78.5 degree
Some important types of electrodes which are frequently used in electrochemical cells are described as follows: Metal-metal ion electrode: such type of electrodes includes a
A student wishes to prepare 250ml of a 0.20mol/L solution of oxalic acid (COOH)2.2H2O. a) Calculate the amount (no.of moles) of oxalic acid required. b) Calculate the mass of oxali
ACTINIUM AND THE ACTINIDES Following actinium (group 3) are the 14 components of the actinide series (represented by the symbol An) combined with progressive filling of the 5
Quantum numbers of an atom can be defined on the basis of: (1) Hund's rule (2) Aufbau's principle (3) Pauli's exclusion principle (4) Heisenberg's uncertainty principl
Characteristic flame colour: specific metals and their salts impart particular colours to Bunsen burner flame. (1) Pb (plumbum) impart pale greenish colour to the f
why the solution after the reaction need to add HCl?
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