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when a clean iron nail is placed in an aqueous solution of copper(ll) sulfate, the nail becomes coated with a brownish black material.
a.) What is the name of the material coationg the iron?
b.) What are the oxidizing and reducing agents?
c.) Can this reaction be made into a voltaic cell?
d.) Write the blanced equation for the reaction.
e.) Calculate the Ecell for this process
A buffer (pH 3.70) was prepared by mixing 1.00 mole of formic acid and 1.00 mole of sodium formate to form an aqueous solution with a total volume of 1.00 L.
what is the percent relative error? Please explain by showing work. Are these measurements more precise or more accurate? What is the purpose of repetition in measurements?
30.0 mL of 0.150 M CH3CO2H are titrated with 0.150 M NaOH. What is the pH of the solution after 15.0 mL of NaOH has been added. The Ka for acetic acid is 1.80 x 10-5
Draw the six conformers in newman projection for the 60 degree intervals from 0 to 360 degrees for carbon atoms 3 and 4. Clearly show which carbon is represented by the "dot" and the "circle" Show which C
A basketball is inflated to a pressure of 1.50 atm in a 20.0°C garage. What is the pressure of the basketball outside where the temperature is -5.00°C?
Calculate the amount of heat liberated (in kJ) from 305 g of mercury when it cools from 82.0°C to 13.0°C.
Consider a cylinder filled with air with a piston and spring arrangement on top. The external pressure is 1 bar, the initial temperature of the air in the cylinder is 25 C.
What is the specific heat of aluminum if the temperature of a 28.4 g sample of aluminum is increased by 8.1 oC when 207 J of heat is added.
How should a professional emergency responder be concerned about the following routes of radiation exposure for a person on scene and a person downtown?
Consider a 53.5 g sample of H2O(g) at 117°C. What phase or phases are present when 134 kJ of energy is removed from this sample.
what volume of liquid benzene must be vaporized to give that average concentration in a room
what mass of ammonium chloride can be added to 100 grams of water at 20 degrees C before the solution becomes saturated
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