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You have a 12 volt lead storage battery in your car (you can find the equations for the redox reactions in your text book). If you run two 45 watt headlights for 2.0 hours using your battery as the energy source, how many grams of lead sulfate will be produced in the battery?
What volume of 18.5 C Water must be added together , with a 1.23 kg piece of iron at 68.5 C , so that the temprature of the water in the insulated container such as the temprature remains constant at 25.6 C
a gas is compressed from an initial volume of 5.75l to a final volume of 1.24 l by an external pressure of 1.00 atm.
A volume of 10.0mL OF A .00600 msolution of Cl- ions are reacted with .500 M soution of AgNO3. what is the max mass of AgCl that precipitates
Draw the abbreviated structural formula of the products of the complete hydrolysis of lidocain.
You have been asked to review the calculations of an assistant with respect to the calculation of the internal energy of CO2. The assistant looked up the enthalpy of CO2
A equilibrium mixture of H2,I2, and HI at 458C contains 0.110 mol of H2, 0.110 mol of I2, and 0.761 mol of HI in a 5.00 L vessel. What is the equilibrium partial pressure of H2 when equilibrium is reestablished following the addition of 0.100 mol ..
HEPES are synthetic amine compounds that are often used to make buffers for biochemical studies. What is the pH of a 1.0 L buffer solution that is 0.250M HEPES
the mass of a proton is 1.673 sdot 10-24 g. the mass of a neutron is 1.675 sdot 10-24 g. the mass of the nucleus of an
A 455-g piece of copper tubing is heated to 89.5 oC and placed in an insulated vessel containing 159 g of water at 22.8 oC. Assuming no loss of water and a heat capacity of 10.0 J/K for the vessel
An equilibrium mixture for the reaction above contains [H2] = 1.00 M, [N2] = 1.50 M, and [NH3] = 2.00 M. What is the value of the equilibrium constant, Kc, for the reaction?
A 15 mL sample of a solution of Pb(ClO3)2 was diluted with water to 19 mL. A 15 mL sample of the dilute solution was found to contain 0.027 moles of Pb2+. What was the concentration of Pb(ClO3)2 in the original undiluted solution.
A student determined the Kf (f as lower subscript) of t-butyl alcohol using tap water instead of distilled or deionized water. Describe the problems that might have been encountered. How would these problems affect the magnitude of Kf?
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