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nuclear quadruple resonace
1) A 100 mL 0.4M acetic acid soln is titrated with 0.5M NaOH. Write a reaction equation to work the following: a) What volume of the base would be required to reach the equivalenc
Q. Application of electrometallurgy? In theory, aluminium metal would be made the same way. But, aluminium trichloride is covalent and it does not conductor of electricity. As
Explain detergents? Give their scheme classification. Why are the detergents preferred over soaps?
Starch and its derivatives Starch is a white amorphous substance along with no taste or smell. While heated to a temperature among 200-250 o C it changes into dextrin. At large
1. Consider a platinum crystal structure (FCC, R Pt = .139 nm). a. Sketch the (100), (110), and (111) planes (including the atoms in the second layer if they can be observed
Q. Calculate standard state enthalpy of the substance? Ans. To determine ΔH o f for calcium carbonate, calcium and carbon are burned in a calorimeter. Noti
Q. Define Conjugate acid-base pair and buffer? Buffers are substances that resist changes in pH. To "balance pH" means to buffer. Weak acids and bases make good buffers.
Q. Explain Ligand field theory? The bond approach, though not as perfect, is more useful. Here we do all the calculations based on crystal field theory. The differences between
Azimuthal quantum number for last electron of Na atom is: (1) 1 (2) 2 (3) 3 (4) 0 Ans: 0
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