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Problem- Arrange Cu, Ag, Pb, Zn, and Mg in order of their activities, listing the most active first. Explain how you determined this order.
Please write answer for each section to receive points
Calculate (a) the mean potential energy and (b) the mean kinetic energy of an electron in the ground state of a hydrogenic atom
metallic iron has a bcc structure at 20 c and a density of 7.8 gcm3. what is the length of the side of the unit cell
What is the pH of the solution when 50 grams of Ca(OH)2 was added to 1 liter of water? Ksp of Ca(OH)2 = 6.5 x 10^-6
A laboratory stockroom has a stock solution of 90%(m/v) sulfuric acid,H2SO4(aq). If a technician dilutes 50ml of the stock solution to a final volume of 300ml, what will be the new mass/volume percent concentration?(HINT: the dilution formula ..
The pressure of the gas is 365 torr, and the temperature is 45, ^{\circ}C. If the temperature changes to 60\, ^{\circ}C with no change in volume or amount of gas, what is the new pressure, P_2, of the gas inside the container
what volume and mass of steam at 100 degress celsius and 1.00 atm would release the same amount of energy during
What is the molar mass of the unknown acid? B) As the acid is titrated, the pH of the solution after the addition of 15.00mL of the base is 9.46. What is the Ka for the acid?
what is the vapor pressure at 25oc of a solution containing 4.00 x 102 g of sucrose c12h22o11 in 5.00 x 102 g of water?
Sodium Carbonate (NaCO3) is available in very pure form and can be used to standardize acid solutions. What is the molarity of the HCl solution if 25.3 mL of the solution is required to react with 0.256 g of Na2Co3
Calculate the equilibrium constant at 25 degrees celsius for the reaction 4Fe+(aq) + O2(g) + 4H+ ----> Fe3+(aq) + 2H2O(l).
A reaction vessel at 27 degrees C containsa mixture of SO2 (P = 3.10 atm) and 02 (P=1.10 atm). When a catalyst is added to the reaction 2SO^2(g) + O2 (g) = 2SO3 (g) takes place
Derive an expression for the force constant of an oscillator that can be modelled by a Morse potential using equation 12.37 which states
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