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What is the pH of a solution made by mixing 25.00mL of 0.200M CH3COOH with 10.00mL of 0.200M NaOH? Ka of acetic acid is 1.8 x 10^-5.
525mL of 1.50M NaCl is added to a beaker containing 378mL of 2.22M AgNO3, resulting in the formation of AgCl precipitate.
The Ksp of barium carbonate (BaCO3) is 5.0*10^-9 at 25.0 C. If a 20.0 mL sample of 0.1 M Ba(NO3)2 is added to 50.0 mL of 0.1 M Na2CO3.
calculate the theorretical yield of aspirin if 1.05 g of salicyclic acid is combined with 2.0 mil of acetic anhydride.
The free energy change Delta G at 2400 K is equal to 1.22*10^5 J/mol. Calculate the equilibrium constant at 2400 K
During this process, 346 J of work was done by the system and its internal energy 9185 J. What is the specific heat of the gas?
The excess I3- was titrated with 50.00 mL of a 0.02000 M Na2S2O3 solution. What was the mass percent of arsenic trichloride in the original sample?
Calculate the Ksp for zinc phosphate if 1.18 10-4 g of zinc phosphate dissolved to make 5.0 L of a saturated solution.
When 1.550 g of liquid hexane (C6H14) undergoes combustion in a bomb calorimeter, the temperature rises from 25.87 ºC to 38.13 ºC. Find ?E rxn for the reaction in kJ/mol hexane. The heat capacity of the bomb calorimeter, determined in a separate e..
The energy levels the electron can occupy in the Be3+ ion can be calculated using the energy level equation. Calculate the energy in J of the electron when it is in the n= 4.00 level.
a saline solution contains 150 mEq/L each of Na+ and Cl- how many moles of Na+ and Cl- are in 2.50L of the solution
The solubility of calcium sulfate is 0.67 g/L. Show the calculation of the Ksp for calcium sulfate (all steps including chemical equilibria must be correct for full credit)
In some solar-heated homes, heat from the sun is stored in rocks during the day and then released during the cooler night. (a) Calculate the amount of heat required to raise the temperature of 78.7 kg of rocks from 25.0°C to 43.0°C.
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