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The Brass is a substitutional alloy consisting of a solution of copper and zinc. A meticulous sample of red brass consisting of 82.0% Cu and 18.0% Zn by mass has a density of 8780kg/m3. Explain what is the molality of Zn in the solid solution?
Draw the structures of the E and Z stereoisomers of 1,4-diphenyl-2-butene-1,4-dione and label which is the cis and which is the trans
using the data collected for part c on your data sheet and assuming the density of the vinegar is 1.00gml 1 calculate
Consider the reaction at 25C 2NO2 --> 2NO + O2 The overall rxn rate = k[NO2]2. The rate constant, k = 1.4 × 10^10 M-1 s-1. If 3.8 moles of NO2 are initially present in a sealed 1.00 liter vessel at 25 C, what is the half-life of the reaction
the partition coefficient between ligroin and water for solute a is 4. what weight of a would be removed from a
How many minutes would a solution of Cd2+ have to be electrolyzed with a 2.420 A current to plate out 1.77 g of Cd? min
at 25 c and 1.0 atm .25 g of a gas dissolves in 1.00l of water. what mass of the gas dissolves in 1.00l of water at 25c
Component of citrus fruits is the bitter compound limonin, which contains only carbon, hydrogen, and oxygen. When a 1.000-gram sample of limonin is subjected to complete combustion, 2.432 grams of CO2 and 0.574 grams of H2O are produced.
Use simple structure and bonding models to account for why xenon is capable of forming compounds like XeF4 while argon is not.
Calculating Delta H, Use some or all of the following reaction enthalpies to calculate delta H for the reaction:
The molecular weight and formula of a hydrocarbon are to be determined through the use of the freezing point depression method. The hydrocarbon is known to be 86 percent carbon and 14 percent hydrogen by mass.
If I have 7.0 moles of gas at a pressure of 0.10 atm and at a temperature of 50.1 degrees C in a balloon, what is the volume of the balloon? (Round to one decimal place.)
The solubility of zinc oxalate is 7.9 x 10-3 (exponential 3)M at 18 degrees celsius.Calculate its Ksp. Find the pure molar solubility of BaCrO4(Ksp=2.1x10(-10 Exponentially ) in a) pure water and b) 1.5 x10(-3 exponentially) M Na2CrO4.
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