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The overall reaction in the lead storage battery used in your car is Pb (s) + PbO2 (s) + 2 H+ (aq) + 2 HSO4 - (aq) ? 2 PbSO4 (s) + 2 H2O (l) a. For the overall cell reaction, ?HO = -315.9 kJ and ?SO = +263.5 J/K. Calculate Eo cell at -20 OC. ASSUME ?HO and ?SO are independent of temperature. b. Calculate Ecell at -20 OC when [HSO4 -] = [H+] = 4.5 M.
What mass of oxygen (in grams) reacts when 14.2 g of ethanol (CH3CH2OH) are combusted in oxygen to produce carbon dioxide and water
The Ksp of calcium hydroxide, Ca(OH)2, is 5.02 × 10-6. Calculate the solubility of this compound in g/L.
Enter the net ionic equation for the reaction of aqueous sodium chloride with aqueous silver nitrate.
sample of HCl solution reacts with excess Mg to produce 4.20 L of H2 gas at 745 mmHg pressure and 35.0 degrees C. What is the molartiy of the HCl solution?
When a piece of metal is irradiated with UV radiation (wavelength=162nm), electrons are ejected with a kinetic energy of 3.54x10^-19 J. What is the work function of the metal
Using partial orbital diagrams show the orbital hybridization that occurs for the central Carbon that can explain the formation of CH4
A mixture was prepared with the following initial concentrations: [CO] =0.20M, [H2O] = 0.30 M. No formic acid, HCHO2, was initially present. What was the equilibrium concentration of HCHO2?
chloromethane gas (CH3Cl) at 20.0 degrees celsius and 0.973 atm pressure. The molar mass of a chloromethane is 50.5 g/mol.
Explain which of the following aqueous solutions has the strongest ion-dipole attractions: 0.3 M Na3PO4, 0.1 M NiF2, 0.2 M Rb2CO3, 0.01 M Sr(OH)2, , 0.03 M ScBr3.
Glucose is much more soluble in water than 1-hexanol even though both have 6 carbons. Explain
The solvolysis product of 1-bromo-2,2-dimethylbutane with ethanol initially forms the expected carbocation but does not give any of the expected 1-ethoxy-2,2-dimethylbutane. Draw the rearranged cation that will eventually lead to the product.
If a 20.0 °C drop in temperature causes a fortyfold decrease in reaction rate for a certain reaction, what is the activation energy of the reaction
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