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Which is the anode and which is the cathode of a concentration cell Au/Au^3+ , where the Au^3+ is 0.89 M in one half cell, and 0.14 M in the other? What half reactions occur at each?
Dibenzoylmethane is not a methyl ketone, but it gives a positive result in the iodoform test when treated with NaOH and I2. Explain this result.
A 3.00-L flask contains nitrogen gas at 25°C and 1.00 atm pressure. What is the final pressure in the flask if an additional 2.00 g of N2 gas is added to the flask and the flask cooled to -55°C?
The change in enthalpy (delta S standard) for a reaction is -31.7 kJ/mol. The equilibrium constant for the reaction is 4.4×103 at 298 K. What is the equilibrium constant for the reaction at 644 K
An iron ore sample is a mixture of Fe2O3 and several impurities. A 752. g sample of the impure iron ore is heated with excess carbon.
a 37.4-l volume of methane gas is heated from 22 degrees c to 78 degrees c at constant pressure. what is the final
draw the Lewis structure with all bonds and lone pairs (b) indicate directions in all bond dipoles (c) indicate the molecular dipoles and (d) indicate the shape of each molecule.
The first-order reaction SO2Cl2 --> SO2 + Cl2, has a rate constant of 2.20 x 10^-5 s^-1 at 593 K. What percentage of the initial amount of SO2Cl2 will remain after 2.00 hours
determine the quantity of charge in c has flowed if a current of 11.96 ampere flows for 8.76 hours?a boy has an aqueous
If 16.0 g of methanol are reacted with an excess of PBr3, how many grams of CH3Br would be formed if there is a 25.0% yield
The radioisotope iodine-131, used to image the thyroid, has a half-life of 8.0 days What fraction of iodine-131 remains in the body after 3.0 days?
The streams are labeled as follows: 3 - boiler to turbine 1; 4 - turbine to reheat; 5 - reheat to turbine 2; 6 turbine to condenser; 7 condenser to pump; 8 pump to boiler. Determine the following
What volume of H2 (at 25oC and 1.00 atm ) can be produced by reaction of 161 g Fe and 202 g of HCl? (Atomic weights: Fe = 55.85, Cl = 35.45, H = 1.008)
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