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Suppose that a fully charged lead-acid battery contains 1.16 L of 5.00 M H2SO4. What will be the concentration of HSO4- in the battery after 2.83 A of current is drawn from the battery for 6.3 h? Pb(s) + PbO2(s) + 2H+(aq) + 2HSO4?(aq) ? 2PbSO4(s) + 2H2O(l) Enter your answer with 3 significant digits.
Write a balanced half-reaction for the oxidation of chromium ion (Cr^3+) to dichromate ion (Cr2O7^2) in acidic aqueous solution. Be sure to add physical state symbols where appropriate
Give the order of colors in a rainbow from shortest wavelength to longest wavelength and provide approximate numeric values for the highest
A sample of gas has a volume of 35 liters and a temperature of 27 celsius. With the pressure remaining constant, the volume is raised to 50 liters. What is the new temperature
The hydrogen carbonate ion can act as both an acid and a base. Write out two equations which demonstrate this and calculate (or look up) the equilibrium constants for both expressions
Magnesium reacts with iron(III) chloride to form magnesium chloride and iron. 3Mg(s) + 2FeCl3(s) => 3MgCl2(s) + 2Fe(s)
calculate the heat released when 3.89 l of cl2g with a density of 1.88 gl reacts with an excess of sodium metal at
Calculate equilibrium concentration of Ag+ in a solution that is initially 0.110M AgNO3 and .870M NH3 and in which the following reaction takes place
How many liters of water are required to dilute 6.23mL of 12.2M HClO4 to make a solution with a pH of 2.34? Write your answer as 1.2E1L
In a gas mixture, the partial pressures are nitrogen 435 , oxygen 145 , and helium 240 . What is the total pressure ( torr) exerted by the gas mixture?
Use a drawing program to draw a beaker.
Describe how a cation exchange resin and a solution of NaOH with a known concentration could be used to determine the amount of NaCl in an aqueous solution
What is the enthalpy change when a 4.0 gram sample of aluminum burns in excess of oxygen to form aluminum oxide?
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