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An aqueous solution of an unknown ruthenium salt is electrolyzed by a current of 2.50 A passing for 50.0 minutes. If 2.618 g Ru is produced at the cathode, what is the charge of the ruthenium ions in solution? Hint: Figure out the moles of electrons and correlate that with the charge on the ruthenium ions.
What is the PH of .0750L of hypochlorous acid/hypochlorite buffer solution, originally .300M in HCLO and .400M in CLO-. after 7.5E-3 moles of NAOH have been added to the buffer
What is the molarity of an aqueous solution containing 75.3 g of glucose (C6H12O6, mol wt = 180 g/mole) in 35.5 mL of solution
The oxygen atom with its 2s orbital forms a s bond with one of the three sp2 hybrid orbitals of the carbon atom; the two hydrogen atoms with their 1s orbitals each form a s bond with one of the three sp2 hybrid orbitals of the carbon atom.
If a temperature scale were based on the freezing point (5.5 degrees celsius) and boiling point (80.1 degrees celsius) of benzene and the temperature difference between these points was divided into 50 units (called degrees X), what would be the f..
an element t burns in air with a blue flame forming white fumes which dissolve in water to form a solution that turns blue litmus paper red(t is not the actual symbol)
Calculate the new freezing point for a 0.61 m solution of CCl4 in benzene. 2) Calculate the increase in the boiling point, Î"T, for a 1.94 m solution of sucrose (dissolves as a molecule) in water
Some anesthetic drugs relieve pain by interfering with various parts of the action potential (discussed in class). Give a brief description of how the two drugs below may work as pain-blockers.
The total pressure of the mixture is. 650 mmHg. What are the partial pressure of each of the gases ? He, and Xe
What is the smallest possible integer coefficient of S in the combined balanced equation and compute the final pressure in the tank if nothing else is altered in the surroundings.
if 162 of wet is collected over water at 24 and a barometric pressure of 736 how many grams of have been consumed? the
Will the recorded temperature change for an exothermic reaction performed in a glass calorimeter be greater or less that that in a styrofoam "coffee cup" calorimeter? Explain. Assume glass to be a better conductor of heat that styrofoam.
compressed gas cylinder contains 1.00 x 103 g of argon gas. The pressure inside the cylinder is 2050 psi at a temperature of 18oC. How much gas remains in the cylinder if the pressure is decreased to 650psi at a temperature of 26oC?
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