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The ionization energies required to remove successive electrons from one mole of calcium atoms are 590 kJ/mol, 4911 kJ/mol, and 6474 kJ/MOL. the most common ion of calcium is probably
A person inhales air richer in O2 and exhales air richer in CO2 and water vapor. During each hour of sleep, a person exhales a total of 300. L of this CO2-enriched and H2O-enriched air. (a) If the partial pressures of CO2 and H2O in exhaled air ar..
What is the initial temperature of a gas if the volume changed from 1.00 L to 1.10 L and the final temperature was determined to be 255.5oC
The acidic anion reacts with strong bases according to the following net ionic equation HC8H4O4-(aq) + OH- (aq)--->C8H4O4-2(aq) + H2O(l) If a 0.902g sample of KHC8H4O4 is dissolved n water and titrated to the equivalence point, with 26.45 mL of Na..
Calculate the number of moles of electrons needed to produce 5.12g of copper from the electrolysis of a solution of CuSO4.
What is the wavelength of a baseball having mass 100.0 g traveling at a speed of 160 km/hr? What is the wavelength of an electron traveling at the same speed
if nh32.0m h20.0013m and n2 0.033m then determine in which direction will the reaction proceed to reach equilibrium?
The equilibrium concentration of I2 is 0.05M. What is the equilibrium constant Kc for the reaction at this temperture? Express answer in K
what would you have observed if you had added a concentration solution of nacl to the cocl2 coh2o6 equilibrium system?
How many kJ of energy are required to convert 258 grams of ice at 0°C to water (liquid) at 42.1°C? The following information is given for H2O.
Calculate weight percent of Fe in ore titrating with potassium dichromate with the following information:
Benzoic acid, C6H5COOH, is sometimes used to for the standardization of solutions of bases. A 1.722 g sample of benzoic acid reacts with 26.47 mL of a NaOH solution. What is the molarity of the base solution
Consider the following reduction potentials: Cu2+ + 2e- -> Cu E° = +0.34 V Pb2+ + 2e- -> Pb E° = -0.13 V For a galvanic cell employing the Cu, Cu2+ and Pb, Pb2+ couples, calculate the maximum amount of work that would accompany the reaction of one..
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