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A cell composed of a platinum indicator electrode and a silver-silver chloride reference electrode in a solution containing both Fe2 and Fe3 has a cell voltage of 0.738 V. If the silver-silver chloride electrode is replaced with a saturated calomel electrode, what is the new cell voltage?
what volume does .103 mol of N2 gas occupy at a temperature of 27 degrees Celsius and a pressure of 784 mm Hg?
A solution is prepared by adding 60.0 mL of 0.060 M HBr to 180.0 mL of 0.70 M HI. Calculate the concentrations of all species in this solution. HBr and HI are both considered strong acids
What minimum volume of sulfur dioxide at STP would be necessary to produce 82.5 kg of sulfur?
Calculate the freezing point of a 0.08500 m aqueous solution of NaNO3. The molal freezing point depression constant of water 1.86 degrees C/m.
A mixture formed by adding 40.0 mL of 2.5×10-2 M HCl to 120 mL of 1.0×10-2 M HI. What is the pH of the strong acid solution?
Calculate the pH during the titration of 34.5 mL of 0.507 M triethylamine, (C2H5)3N with 0.148 M HCl after 13.0 mL of the acid have been added. Kb of triethylamine = 5.2 x 10-4.
Three gases, hydrogen, helium, and krypton are confined in a 10.0 L vessel at a pressure of 6.00 atm. The vessel contains 4.00 moles of hydrogen, 3.00 moles of helium, and 5.00 moles of krypton.
What is the Brownian diffusivity of a 0.2 um (micrometer) particle in air? Assume T = 293 K and P = 1 atm.
Assuming that you start with 2.00 g of sodium benzoate and 5 mL of 3M HCl, how many molar equivalents of HCl are you using? Use two decimal places.
Suppose you were given a pure stereoisomer that rotated the plane polarized light either +60 degrees or -120 degrees, i.e a uniform colour is observed for both of these readings.
iron(111)oxcide is formed when iron cobines with oxygen in the air. how many grams if Fe2O3 are formed when 16.7 Fe reacts completly with oxygen?
How do you understand the following terms: "carbon loading" and "bonding density" for RP HPLC packing material? Which one is the most important for HPLC? Explain.
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