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A solution is prepared by mixing 50.0 mL of 0.29 M Pb(NO3)2 with 50.0 mL of 1.9 M KCl. Calculate the concentrations of Pb2+ and Cl ? at equilibrium. Ksp for PbCl2(s) is 1.6 x10-5.
The most important commercial process for generating hydrogen gas is the water-gas shift reaction: CH4(g) + H2O(g) CO(g) + 3H2(g) a)Use tabulated thermodynamic data to find
Choose one of the following atmospheric issues: air pollution, global warming, ozone depletion, and acid deposition. Then, respond to the following,
Write the balanced reaction for the complete combustion f octane (C8H18) and then determine how many moles of oxygen it would require to burn 240.00 moles of octane? 2 350.00 grams of octane?
What fraction of piperazine (perhydro-1,4-diazine) is in each of its three forms (H2A, HA-, A2-) at pH 8.44
A certain substance, intially present at 0.950 M, decomposes by first-order kinetics with a rate constant of 1.25 x10-2 mol m-1 s-1. calculate the time (in seconds) required for the system to reach a concentration of 0.431M
how much heat in kj is required to warm 11.0g of ice initially at -10.0 c to steam at 108.0 c? the heat capacity of ice
How many moles of H3O+ must be added to 170 mL of a solution to adjust the pH from 7.84 to 6.27? Use E notation and 3 significant figures.
Predict the magnetic susceptibilities (para- or diamagnetic) and determine the number of unpaired electrons of each of the following complexes (consider C2O42- and H2O as strong field ligands which cause a large splitting of the d-orbitals).
Suppose that a radiologist who is 4.0 m from a small, unshielded source of radiation receives 3.4 units of radiation. To reduce the exposure to 0.34 units of radiation, to what distance from the source should the radiologist move?
Propane reacts with excess oxygen to produce carbon dioxide gas and water. What volume of CO2,measured at 27.2 °C and 0.918 atm, is produced from the reaction of 10.1 g propane with excess oxygen.
Identify the ground state with spin multiplicity for the following cases: Cu2+ in a Td environment V3+ in an Oh environment Cr3+ in an Oh environment Mn2+in a Td environment Cu2+ in an Oh environment
How many moles of hydrogen gas would be needed to react with excess carbon dioxide to produce 30.6 moles of water vapor? Express your answer with the appropriate units.
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