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331 mg of an unknown acid was titrated with 0.110 M sodium hydroxide. The equivalence point is at 25.00 mL. What is the molar mass of the unknown acid?
Calcium chloride reacts with silver nitrate. how many moles of AgCl are produced when 0.50 mol of CaCl2 reacts with an excess of AgNO3
calculate the molarity of a solution of glycerol made by dissolving 50.000 glycerol at 15 in enough water to make
Determine osmolarity of solution when 25.0 grams of aluminum chloride dissolves in 2.50 liters of H2O.
If the salt bridge consists of a gel containing approximately 1 M KNO3, will the NO3-ions flow into the right hand (Cu, Cu2+) or left hand (Al, Al3+) half-cell when the circuit is completed
What region of IR spectrum (give a range in wave numbers) is most useful for distinguishing between isomers that contain the same functional groups
An equimolar liquid mixture of benzene and toluene at 10C is fed continuously to a vessel in which mixture is heated to 50C.
The reaction 4PH3(g) -> P4(g) + 6H2(g) is found to be first order in PH3 with a rate constant of 1.6*10^-2 sec^-1 at 650 C. a)Give the rate law (rate equation) for the reaction and explicitly state how the reaction rate in this case would be defin..
a compoud is known to contain only carbon, hydrogen and oxygen. If the complete combustion of a .150 g sample of this compoud produces
2.50 moles of COBr2 are introduced into a 2.00 liter flask at 0degrees and heated to a temp of 73 degree celcius. At equilibrium, the equilibrium constant is .190. What is the percent disassociation? what is the equilibrium concentration of each s..
Celsius is allowed to expand into an evacuated vessel of 2.50 L volume. Does the gas do work? Explain
Molar Concentration of Copper (II) Nitrate, A 25.00 mL sample containing Cu2+ gave an instrument signal of 23.6 units (corrected for a blank). When exactly 0.500 mL of 0.0287 M Cu(NO3)2 was added to this solution
The base solution was added to the acid solution but was not stirred while temperature measurements were made. Some of the base splashed out of the calorimeter while pouring
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