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A particular voltaic cell operates on the reaction below, giving an emf of 0.865 V. Compute the maximum electrical work generated when 18.0 g of zinc metal is consumed.Zn(s) + CI2 (g) Zn2+(aq) + 2 Cl -(aq)
Hard water contains Ca+2, Mg+2 and Fe+2, Explain which interfere with the action of soap and leave an insoluble coating on the insides of containers as well as pipes when heated. Water softeners replace these ions with Na+.
If 45.2 mL of 0.116 M HCl solution is needed to neutralize a solution of KOH, how many grams of KOH must be present in the solution
Predict which substance in each of the following pairs has a greater molar entropy. 1. P4 (g) vs. P2 (g) 2. HNO3 (aq) vs. HNO3 (l) 3. CuSO4 (s) vs. CuSO4 * 5H2O (s)
What assumption is commonly used to simplify the process of finding the pH for a solution of a weak acid
If an enzyme-catalyzed reaction proceeds at 25% maximal velocity at 5 mM substrate concentration, calculate the Km of the enzyme.
What is the Henry's law constant for the gas if the partial pressure of the gas in air is .0088 atm?
How much HCl must be added to a liter of buffer that is 1.5 M in acetic acid and 0.75 M in sodium acetate
Considerning the electrons in the shells, subshells, and orbitals of an atom, state how many electrons have: of electrons
Determine how many micrograms of herbicide are present in 10 lb of soil if the herbicide level in the soil in a corn field was observed at 3.0 ppb. ?
Assume that the following terpenoid is derived biosynthetically from isopentenyl diphosphate and dimethylallyl diphosphate, each of which was isotopically labeled at the diphosphate-bearing carbon atom (C1). Click on the carbons that would be isot..
A system absorbs 192 kj of heat and the surroundings do 120 kj of work on the system. what is the change in internal energy of the system
Bioremediation is the process by which bacteria repair their environment in response, for example, to an oil spill. The efficiency of bacteria for "eating" hydrocarbons depends on the amount of oxygen in the system
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