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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 is the q solution in Jouls and what is the q rxn in Joules? What is the Delta H rxn in KJ/mo of HNO3 neutralized?
A pound of coffee beans yields 53 cups of coffee (4 cups = 1 ). How many milliliters of coffee can be obtained from 1 of coffee beans?
How many atoms of iron would be needed to react completely with 36 molecules of oxygen. How many molecules of oxygen would be needed to react completely 16 atoms of iron
write an equation for the acid-base reaction between nitrous acid and hydroxide ion. why does the equilibrium favor the products
0.375 kg of water are in a well insulated container at 21.3 c. After 4.184kj of heat are added to the water, what is the final water temperature ?
First, plot the potential energy as a function of the electron's distance from the nucleus, i.e.,V(r) . (Be sure to remember the sign of this potential.)
Do these lambda maxs indicate an increase or a decrease in the energy of the light absorbed as the number of EN ligands bound to Cu(II) increases
How many moles of oxygen will be produced if 27.6 grams of Al are produced?
How many liters of hydrogen gas are collected over water at 18 0C and 725 mm Hg when 0.84 g of lithium reacts with water. P= 15.5 torr
If you shine a light beam through this sample, minimal light passes through ( assume no light passes through). What if your sample allows 50% of light to pass through? How many bacteria are in your sample.
Which of the following statements correctly describe the energy and energy changes in a system? Select all that apply. 1. Energy is defined as the ability to do work.
Consider the reaction of 25.0 mL of 0.20 M AgNO 3(aq) with 25.0 mL of 0.20 M NaBr(aq) to form AgBr(s) at 25 °C. What is ?G for this reaction? The K sp of AgBr is 5.0 x 10 -13 at 25 °C.
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