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A 1M solution of Cu(NO3)2 is placed in a beaker with a strip of Cu metal. A 1M solution of SnSO4 is placed in a second beaker with a strip of Sn metal. A salt bridge connects the two beakers, and wires to a voltmeter link the two metal electrodes. What is the equation for the equation for the overall cell reaction? What is the emf generated by the cell under standard conditions?
1) What volume (mL) of Hydrogen gas, saturated with water vapor, will be obtained from a 0.1138g sample of alloy which is 73.2 percent Al? (Pbar=754.3 torr, T=21.2deg C) Show your work. 2) What volume (in mL) will the dry hydrogen gas from questio..
what volume of vinegar would be needed to react with 18.00 grams of baking soda? Assume the density of vinegar is the same as that of water.
Fluoride, in the form of sodium silicofluoride (Na2SiF6), is commonly added to municipal drinking water to prevent tooth decay. It is generally added at a level of 1.0 mg/L,
Calculate the pH of a solution of 15 mL K2HPO4 at 0.1 molarity,
Based on the fact that the alloy has an HCP crystal structure, what general processing technique would you consider for the processing of the turbine blade? Explain your choice.
A 220 kiln is used for vitrifying ceramics. It is currently operating at 955, and the pressure is 0.9750 . How many moles of air molecules are within the confines of the kiln
Calculate the mass of nitrogen dissolved at room temperature in an 77.0 home aquarium. Assume a total pressure of 1.0 and a mole fraction for nitrogen of 0.78.
The Lyman series of emission lines of the hydrogen atoms are those for which nf = 1. a) determine the region of the electromagnetic spectrum in which the lines of the Lyman series are observed. b) Calculate the wavelengths of the first three lines..
What is the pressure exerted by some nitrogen gas collected in a tube filled with water on a day when the room temperature is 18.0ºC
the reaction produces 0.90 mol of CO2 and 0.45 mol of H2O. Determine the number of mols of carbon in the compound. Determine the number of mols of hydrogen in the compound.
A 23.45g piece of iron and a 29.95g piece of gold at 100.00C were dropped into 530ml of water at 16.05C. The molar heat capacities of iron and gold are 25.19 (j/mol x C) and 25.41 j/(mol x C). respectively. What is the final temperature of water a..
Identify the two important classes of catalysts. Analyze the chemical reactions that take place when a biological catalyst combines with a reactant (substrate) to form an unstable intermediate.
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