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An open test tube at 293 K is filled at the bottom with 24.2 cm of Hg, and 11.2 cm of water is placed above the Hg. Calculate the pressure at the bottom of the test tube if the atmospheric pressure is 756 mmHg. Use a density of 13.55 g/cm3 for mercury and 0.998 g/cm3 for water.
Give the answer in terms of
(a) dyne/cm2
(b) psia, and
(c) kPa
Write the structures of monomers used in the preparation of: a. Teflon b. PMMA
Why phenol does not react with sodium carbonate & sodium bicarbonate? Reason: This is because Phenol is less acidic than H 2 CO 3 and hence the reaction doesnt takes place.
Why do zinc hydroxide, aluminium hydroxide and lead (II) hydroxide dissolve in excess aqueous sodium hydroxide?
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) = -
In early Greece, water was considered one of the four basic "elements" (earth, wind, and fire as the others) in the universe. With the discovery of more basic constituents, the ter
sodium 4-oxo-2-pentenoate
The energy of an electron of 2py orbital is: (1) Greater than that of 2p x orbital (2) Less than that of 2p x orbital (3) Equal to that of 2s orbital (4) Same a
A sample of water contains: suspended matter = 100 mg; Ca(NO3)2 = 16.4 mg/L; MgSO4 = 24 mg/L; MgCl2 = 19 mg/L; NaOH = 40 mg/L and KOH = 56 mg/L. Calculate temporary, permanent and
1. A 50.0-L reaction vessel contains 1.00 mol N2, 3.00 mol H 2 , and 0.500 mol NH 3 . Will more ammonia, NH 3 , be formed or will it dissociate when the mixture goes to equilibrium
LIGAND FIELD THEORY The five d orbitals with distinct values of the magnetic quantum number (m) have the similar energy in a free atom or ion. In any compound they interact
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