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Metal plating is done by passing current through a metal solution. For example, an item can become gold plated by attaching the item to a power source and submerging it into a Au^3+ solution. 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.
What mass of gold is produced when 15.0A of current are passed through a gold solution for 15.0min?
what mass in grams of lead(II) Iodide is formed, assuming the reaction goes to completion? b) What is the molarity of Pb2+ in the resulting Solution?
All numerical answers must be reported to the correct number of significant figures. In a routine laboratory analysis, a technician prepare a solution containing 0.126 g of KMnO4 in a 0.250 L volumetric flask. What is the molar concentration (mola..
The liquid vaporizes quickly to gaseous nitrogen (which has a density of 1.15 g/mL at room temperature and atmospheric pressure) when the liquid is removed from the tank.
A student heated a 25.0g piece of a metal to a temp of 100.0C and placed it in 100.0g of water, initially at a temperature of 10.0C. Determine the final temperature of the system(aluminum and water)
Calculate the degree of dissociation by A) assuming ideal behavior and B) using a mean activity coefficient y=0.93. The concentration of the acid is 0.010 M.
Find out the Kb of ammonia if the pH of a buffer formed by mixing 50.0 mL of 1.00 M NH 3 and 50.0 mL of 1.00 M ammonium nitrate?
K a for aspirin (acetylsalicyclic acid) is 3.0 x 10 -4 at 25°C. What is the the acetylsalicylate anion, the conjugate base of aspirin?
The pressure on 0.850 mol of neon gas is increased from 1.25 atm to 2.75 atm at 100 degree Celsius. Assuming the gas to be ideal, calculate delta S for this process.
A three component solution is made by adding 0.300 moles of CH3CN and 0.400 moles of C3H6O to 0.350 moles of CS2. The mixture behaves as an ideal mixture. What is the vapor pressure of the solution?
Determine the enthalpy for the given reaction as CS2
captain kirk of the starship enterprise, has been told by his superiors that only a chemist can be trusted with the combination to the safe containing the dilithium crystals that power the ship.
How many grams of aluminum oxide are produced when 50.3g aluminum react, When 0.510 mole aluminum is reacted in a closed container with 7.90g oxygen, how many grams of aluminum oxide can form?
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