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Why do zinc hydroxide, aluminium hydroxide and lead (II) hydroxide dissolve in excess aqueous sodium hydroxide?
Use of the Grignard solution to prepare 2,2,6-trimethyl-5-phenylheptan-3-one: Prepare a solution of your enone (5.64 g; 0.030 moles) in dry ether (30 mL) and add it to the dro
#sulphuric acid can be made with concentration of 99%.however for diferent industrial requirement ,62% h2so4 is used which has density of 1.55 g/ml.calculate the molarity,molality
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, in grams, of calcium phosphate will be formed? What will be the concentrati
Pig iron is cast iron with a very high carbon content: 4% by weight or more. Cast iron has at least 2% carbon by weight. Less than that, and it''s steel. Cast iron and pig iron are
Q. Illustrate the Quantum Mechanics? Ans: In 1924, a French scientist named Louis de Broglie proposed another model for the nature of the electrons in atoms. He predicted tha
The electronic configuration (outermost) of Mn +2 ion (atomic number of Mn= 25 ) in its ground state is: (1) 3d 5 , 4s o (2) 3d 4 , 4s 1 (3
Q. Define the Planck constant? The energy of a photon ( E photon) of a certain frequency (violet) is able to be calculated by using the following equation in which h represen
What is the Coordination number of FCC (CN): If we take the corner atom, the face centered atoms are the nearest neighbors. A corner atom has four face centered in its own pl
Question: Steam initially in a vapor/liquid mixture with 80 percent liquid at 250C, expands isothermally and reversibly to a final state at 20 bar. Using the steam tables: a
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