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The cell potential of the following cell was determined to be 0.524 V when measured with a voltmeter.S.C.E. || Fe+3 (aq, ? M), Fe+2 (aq, 1.28 × 10-3 M)| Pt(s)
a) Calculate the concentration of Fe+3.
b) What would the potential of the iron solution be if it were measured with respect to a saturated silver/silver chloride electrode? With respect to the standard hydrogen electrode?
A 2.154 g sample of HgO produces 125 mL of oxygen gas. The gas is collected over water at 24 C and an atmospheric pressure of 763 torr.
the ratio of the no of molecules in the excited state at the temperature of 213 K to the number of ground state molecules and the percent of the excited molecules at 213 K.?
What volume (in mL) of 0.657 M solution of iron(III) chloride can be made from 52.3 mL of a 1.89 M solution? Assume the volumes are additive.
a gas sample in an open manometer system has a pressure of 530 mmHg . The mercury column has a height of 545 mm on the gas sample side and a height of 425 mm on the air pressure side. what is the value of the air pressure in mmHg?
The reaction vessel is charged initially with SO3(g) and NO(g), each at a partial pressure of 0.500 atm. In the space below, enter the equilibrium the partial pressure of SO2(g) in units of atm
Why is glycogen debranching enzyme necessary? a) It allows regulation of the rate of glycogenolysis. b) Because glycogen phosphorylase cannot convert G1P to G6P
A solution of ethanol (C2H5OH) in water is prepared by dissolving 67.5 mL of ethanol (density = 0.79 g/cm3) in enough water to make 250.0 mL of solution. What is the molarity of the ethanol in this solution?
What happens to the interference pattern that results from the diffraction of electrons passing through two closely spaced slits if the rate of electrons going through the slits is decreased to one electron per hour
Sulfur forms a wide variety of compounds in which it has +6, +4, +2, 0 and -2 oxidation states. Give examples of sulfur compounds having each of these oxidation states
If an aqueous solution has a hydroxide ion concentration ([OH-]) of 5.94 x 10-5 mol/L, what is the hydronium ion concentration? 4.48 x 10-12 mol/L 1.68 x 10-10 mol
A container is filled with C2H6O until its concentration reaches 1.375 mol. How many minutes will it take for 71.5 percent of the C2H6O break down?
Each of four compounds shown has one signal in the aromatic region and one signal in the alkyl region of its H NMR spectrum. Use the integral values to determine which compound's H NMR spectrum is shown below
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