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Why is it easier to remove excess acetic acid than excess Isopentyl alcohol?
Calculate the molarity of urea in a soln prepared by dissolving 16 g of urea (MM= 60.0 g/mol) in 39 g of H20. The density of the soln is 1.3 g/ml.
The degree of unsaturation, or index of hydrogen deficiency, is the number of pi bonds plus rings in a molecule. Specify the degree of unsaturation (index of hydrogen deficiency) of the following formulas
So for the energy level diagram of H2, I understand that when H2 absorbs energy, one electron would be promoted to the higher antibonding, but what exactly is the purpose of doing this
So we can focus on just one particle and write an unsteady mass balance on that particle, i.e., d(ρV)/dt = - 4πR^2 km (Csurface - 0) , where V is the particle volume and equals 4/3 πR^3 .
At a certain temperature, the Kp for the decomposition of H2S is 0.726 H2S = H2+S initally only H2S is present at a pressure of 0.126 atm in a closed container.
Br2 (g) + 3F2 (g) ? 2BrF3 (g) Explain what volumes of Br2 and of F2 measured at the same temperature also pressure are needed to prepare 50.0mL of BrF3
A gaseous fuel mixture stored at 744mmHg and 298 K contains only methane and propane. When 13.0L of this fuel mixture is burned, it produces 769kJ of heat. What is the mole fraction of methane in the mixture?
If the alkalinity of the spring water is due only to the presence of carbonate and bicrabonate, what are the concentrations of each of them
A sample of gas confined in a 2.0L container at 930 Torr and 25oC was heated to 45oC. What was the final pressure?
A 100 liter air tank housed in a gas station ruptured suddenly and air originally at 5atm escaped to the surroundings at 1atm and 25°C. Find ?S of air, had it been let out slowly in a reversible manner
a sample of 57 grams of h2o with a temperature of sixteen degree celsius is combined to 260 grams of h2o at 90 degree
the human body contains 0.20 natural potassium. k-40 represents 0.0117 of naturally occurring potassium. 1. what is the
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