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The metal used to recover copper from a solution of copper sulphate is
Fe
The metallurgical process in which a metal is obtained in a fused state is called
froth floatation
Ethyl p-aminobenzoate was produced by the H2SO4 acid-catalyzed, reversible reaction of paminobenzoic acid and ethyl alcohol, as depicted below. Briefly explain why one reactant (the one that's cheaper and more easily separated during work-up) was ..
There is a one to one relationship between the number of moles of hydrogen gas evolved and the moles of Magnesium metal consumed in the reaction, therefore moles of H2 evolved = moles Mg consumed and the atomic weight of Mg = weight of Mg consumed..
a sample of chlorine gas occupies a volume of 946ml at a pressure of 726mmhg. Calculate the pressure of the gas in (in mmhg) if the volume is reduced at constant temperatures to 154ml.
explain what the Grxn for this reaction is if the resistance is 0.08750 ohms. The Faraday constant is 96485.3C/mol of electrons; V =I x R the reduction reaction of O2 is O2 + 4H+ + 4e- equilibrium 2H2O
A beaker contains 115g of ethanol at 18.2 degrees C. Explain if the ethanol absorbs 1125J of heat without losing heat to the surroundings, explain what will be the final temperature of the ethanol? The specific heat of ethanol is 2.46J/g*degrees C..
A solid substance X has a vapor pressure of 300mm Hg at 25oC and does not conduct electricity. Solid substance Y has an undetectably small vapor pressure at 25oC and is a good electrical conductor.
Dermatan sulfate was treated with dimethyl sulfate. The product was hydrolyzed under acidic conditions. Draw the structure of the products.
Make sure to include all the amounts of materials and the equipment you would use. You should plan to use this procedure as your guide for perparing your assigned pigment during the test.
Calculate the solubility of silver arsenate in 0.0011 M AgNO3. Express your answer in moles Ag3AsO4 per liter solution:
Magnesium phosphate precipitates from an aqueous solution. Does the entropy of the system increase or decrease
Write balanced half-cell reactions for CH2O oxidation and SO4 reduction to HS and then add them together to get the balanced overall redox reaction.
The most common source of copper (rm Cu) is the mineral chalcopyrite (rm CuFeS_2). How many kilograms of chalcopyrite must be mined to obtain 230. g of pure rm Cu?
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