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How many grams of dry NH4Cl need to be added to 1.50 L of a 0.800 M solution of ammonia,NH3 , to prepare a buffer solution that has a pH of 8.95? Kb for ammonia is 1.8 X 10^-5
A sample of neon has a volume of 270 mL when it is at a pressure of 831 mmHg. What will be the volume when the pressure is increased to 1238 mmHg?
How many liters of HCl at 100.0 oC and 740 mm Hg are produced from 150.0 g of C10H16?
When 0.800 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 13C is observed.Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL.
Calculate Ecell for the following electrochemical cell at 25 °C Pt(s) | H2(g, 1.00 atm) | H+(aq, 1.00 M) || Pb2+(aq, 0.150 M) | Pb(s) given the following standard reduction potentials.
Is the efficiency of a carnot engine affected by the heat capacity of the gas. i.e if the heat capacity varies with temperature.
In a reaction mixture at equilibrium, the partial pressure of NO is 119 torr and that of Br2 is 175 torr. What is the partial pressure of NOBr in this mixture? Kp=28.4 at 298 K.
What is the hybridization of the nitrogen atom in sulfathiazole? Assuming that the sulfur atom is sp2-hybridized, how many -electrons are there in the sulfathiazole ring?
Order of a reaction, Consider a kinetic study of oxidation of a new plastic stabiliser being proposed for the automobile industry. Stabiliser + H+ + O2 ----> Byproduct
Visualize whats happening at the molecular level and explain how your products wind up in the Hickman's collection well. What would happen if you placed the Hickman above the water condenser?
At 340 K, Kp = 69 for the reaction H2(g) + I2(g) ->2HI(g). 50.0 g of HI is injected into an evacuated 5.00-L rigid cylinder at 340 K. What is the total pressure inside the cylinder when the system comes to equilibrium?
calculate the volume of air at 35 degrees Celsius and .96 atmosphere that is needed to burn completely 12.51 grams of pentane
The compound 2-methyl-1,4-pentadiene would be classified as what type of diene? Select the least stable diene listed below
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