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Galvanized nails are iron nails that have been plated with zinc toprevent rusting. The relevant reaction is For a large batch of nails, a manufacturer needs to plate a totalzinc mass of 1.70 on the
The item itself serves as the cathode, at which the Au^3+ ions are reduced to Au(s). A piece of solid gold is used as the anode and is also connected to the power source, thus completing the circuit
A 0.20M of acetic acid, CH3COOH, at a temperature of 25degC has pH of 2.73. Calculate the hydrogen ion concentration
what products would expect to obtain in the reaction of alpha-naphthaldehyde with KOH? write a detailed reaction mechanism.
The osmotic pressure of a solution containing 26.5 mg of an artificial sweetener per liter is 1.70 torr at 30C. Calculate the molar mass of the compound.
considering the energetics of change of H and change of S values of solute/solvent interation, solvent/solbent interactions and aolut/solvent interactions
What type of radioactive decay would be expected for the unstable nuclide
Carbon-14 has a half-life of 5730 yrs. A living organism has an activity of 15.2 counts per minute (cpm) per gram of carbon. If a bone is determined to have an activity of 3.80 cpm per gram of carbo
Bombardment of cobalt-59 with a neutron produces a manganese-56 atom and another particle. What is this particle
Use the tabulated half-cell potentials below to calculate the equilibrium constant (K) for the following balanced redox reaction at 25°C.
Use the standard half-cell potentials listed below to calculate the standard cell potential for the following reaction occurring in an electrochemical cell at 25°C.
Calculate the mass of Li formed by electrolysis of molten LiCl by a current of 6.9×104 A flowing for a period of 23h . Assume the electrolytic cell is 80% efficient.
Carbon monoxide and chlorine combine in an equilibrium reation to produce the highly toxic product phosgene. CO + Cl2 <> COCl2. If the equilibrium constant for the reaction Kc = 248
Use Coulomb's law to calculate the ionization energy in kJ/mol of an atom composed of a proton and an electron separated by 272.00 pm.
Calculate the pH at the equivalence point in titrating 0.100 M solutions of each of the following with 7.0X10^-2 M NaOH. (a) hydrobromic acid (HBr)
Calculate the concentration of an aqueous solution of Ca(OH2)that has a pH of 12.57? Express your answer using two significant figures.
The solubility product constant at 25 C for AgI(s) in water has the value 8.3x 10-17. Calculate Delta G rxn at 25 C for the process AgI (s) --> Ag+ (aq) + I- (aq) where (Ag+)= 9.1 x 10 -9 and (I)
Given the general equilibrium A + 2B C + D and the following concentrations, calculate the equilibrium constant. [A] = 0.2 M, [B] = 0.3 M, [C] = 0.1 M and [D] = 0.2 M
How can i derive the equation dG= RT ln (Q/K) from the following two equations: dGrxn= dGrxn standard + RT ln Q and dGrxn standard= -RT ln k? I am extremely confused
Consider the following half-reactions. What is the maximum Eo of a cell constructed using two of these half-equations.
Balance the following equation in acidic solution using the lowest possible integers and give the coefficient of water. MnO4-(aq) + H2C2O4(aq) ? Mn2+(aq) + CO2(g)
A voltaic cell is constructed in which the cathode is a standard hydrogen electrode and the anode is a hydrogen electrode (P(H2)= 1atm) immersed in a solution of unknown [H+].
A 12V automotive lead-acid battery. Each anode/cathode pair in this schematic cutaway produces a voltage of about 2V. Six pairs of electrodes are connected in series, producing12V.