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2. A mixture is prepared by adding 25.0 mL of 0.185 M Na3PO4 to 34.0 mL of 0.140 M Ca(NO3)2. (a) What mass of Ca3(PO4)2 will be formed? (b) What will be the concentrations of eac
Ionic compounds do not have: (1) Hard and brittle nature (2) High melting and boiling point (3) Directional properties (4) Soluble in polar solvents Ans: Direction
An 80°C aqueous solution containing 58 wt% sodium nitrate (NaNO 3 ) is fed to a combination crystallization-settling unit operating at 25°C. The unit separates crystals from the re
Physical properties - Alkyl nitrites (1) At ordinary temperature it is a gas that can be liquified on cooling to a colourless liquid, (boiling point 17°C) comprising characteri
What will happen if you mix nitrogen and hydrogen gas at room temperature? Explain your reasoning. Calculate the mole fraction of NH 3 that would form theoretically at 298.15
Molar conductivity: The rate of charge transfer is proportional to the number of ions in the solution between the plates, which itself will vary with the concentration, c, of
Q. Explain about Extraction of metals? Extraction of metals is very often done by complex formation. For example, the cyanide process for the extraction of silver and gold is w
Distinguish between van''t Hoff Method and Oswald Isolation Method. In each case give an expression for the rate of reaction.
Time taken for an electron to complete one revolution in the Bohr orbit of hydrogen atom is: (1) 4 Π mr 2 / nh (2) nh/ 4Π 2 mr (3) nh/ 4Π 2 mr 2
The tendency to form electrovalent bond is largest in (1) A (2) B (3) C (4) D
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