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When 50.0 mL of 1.00 M hydrochloric acid and 50.0 mL of 1.00 M sodium hydroxide react, the temperature rises 6.7oC. Use the total solution volume, density of water, and specific heat of water to calculate the heat absorbed by the solution, qsoln, during this reaction.
a. Calculate the amount of heat released, qrxn, by this acid-base reaction.
b. Calculate the moles of hydrogen ion and hydroxide ion initially present, and the moles of water produced in this reaction.
A two-component mixture containing 1-octene and 1,4-dimethylbenzene gave only one spot with an Rf value of 0.95. The solvent used was acetone.
solution is needed to just neutralize excess acid after 20 mL of HCl was added to 1. g of the antacid, how many moles of acid can the antacid counteract per gram.
Construct a delta H and delta S table, including the four possibilities associated with the two possible signs for each of delta H and delta S. Discuss the resulting sign of delta G and the spontaneity of the process.
if you burn 10.00g of octane. if the temperature is 500K, and you have an expansion of 1.00 atm, how much work in joule can be done by the system if the octane is completely converted to CO2 and water vapor. what will be the enthalpy change
Justify whether the following closed system processes have ?U, q, w and ?H increase, decrease or remain the same (0). a) a gas (closed system) is expanded isothermally (gas pressure remains under 5atm of pressure)
what is the percent of magnesium in magnesium phosphate?
How much heat (in ) is required to warm 12.0 of ice, initially at -12.0, to steam at 114.0? The heat capacity of ice is 2.09 and that of steam is 2.01 .
Then you precipitate the calcium ion in solution by adding sodium oxalate Na2C2O4. The precipitate is calcium oxalate, CaC2O4. You find that a sample of limestone weighing 128.3 mg gives 140.2 mg of CaC2O4. What is the mass % of calcium in the lim..
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Draw a fully labeled M.O. diagram for carbon monoxide. Be sure to show the atomic orbitals that come together to form the molecular orbitals, and give the orbital type designations. You may disregard core electrons (1s electrons from the atoms).
Calculate the pH and pOH of a solution that has an OH- concentration of 3.1 x 10-2M. Calculate the pH and pOH of a solution that has H3O+ concentration of 1.3 x10-6M
it was found that at 344 seconds the concentration of dinitrogen pentoxide was 0.696 mol/L and at 708.1 seconds the concentration of dinitrogen pentoxide was 0.237 mol/L. What is the rate of decomposition over the specified time period in this rea..
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