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A student ran the following reaction in the laboratory at 226 K: 2 NOBr(g) 2 NO(g) + Br2(g) When she introduced 0.177 moles of NOBr(g) into a 1.00 Liter container, she found the equilibrium concentration of Br2(g) to be 1.76E-2 M. Calculate the equilibrium constant, Kc, she obtained for this reaction. Kc =
Draw those that have a trisubstituted ring where the methyl groups are oriented in para. Please draw structures
How many moles of chloride ions are there?
Assume that a particular reaction evolves 235kJ of heat and that 24 kJ of PV work is gained by the system What is the delta H inside and the surroundings and delta E inside and out?
Sketch a cylinder with ten molecules of helium (He) gas. The cylinder has a movable piston. Label this sketch before. Make an after sketch to represent
What is the Volume of 1.05mol of Benzene (C6H6) at 20.7 degrees C. The density of Benzene is 0.879 g/mL
An aqueous CaCl2 solution has a vapor pressure of 82.1 mmhg at 50 C . The vapor pressure of pure water at this temperature is 92.6 mmhg What is the concentration of in mass percent?
what are the differences in the type of inhibition caused by heat, acid or base, and heavy metal ions on enzyme activity?
How many grams of aluminum metal must react with aqueous sodium hydroxide to produce 7.50 L of hydrogen gas at 12.5 degrees Celsius and 740 torr if the other product is aqueous Na3AlO3. 2 Al (s) + 6 NaOH (aq) ----> 3 H2(g) + 2 Na3AlO3(aq)
Consider the reaction that occurs when a CLO2 solution and a solution containing hydroxide ions (OH-)are mixed at ) degree celcius @CLO2(aq)+ 2OH-(aq)-----CLO3-(aq) + CLO2- (aq) + H2O(l)
How many moles of sodium choloride should be put in a 50.0 ml volumetric flask to give 0.15 molarity NaCl solution when the flask is filled to the mark with water
Metallic aluminum reacts with MnO2 at elevated temperatures to form manganese metal and aluminum oxide. A mixture of the two reactants is 67.2% mole percent Aluminum. Find the theoretical yield(in grams) of manganese from the reaction of 270 grams..
Calculate the concentration of all species in a 0.100 M phosphoric acid solution. These species include [H3O+], [H2PO3-], [H3PO3], and [HPO32-]. For phosphoric acid, Ka1 = 3.0 x 10^-2 and Ka2 = 1.7 x 10^-7. (Only two of the hydrogens are ionizable..
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