What is the ph at the equivalence point
What is the pH at the equivalence point when 30.0mL of 0.175 mol/L HCOOH is titrated with 0.135 mol/L NaOH? Assume the temperature is 25 degrees celcius. For HCOOH, pKa=3.74 at 25 degrees celcius.
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Compare discrete-trial and free-operant methods of instrumental conditioning. What are the advantages of each class of procedure? What factors would influence your choice of procedure type if you were to explore instrumental behaviors?
What mass of octane must be burned in order to liberate 5350 kJ of heat? ΔHcomb = -5471 kJ/mol.
A space station, in the form of a wheel 105 m in diameter, rotates to provide an "artificial gravity" of 2.50 m/s2 for persons who walk around on the inner wall of the outer rim. Find the rate of rotation of the wheel (in revolutions per minute) t
A solution of salt (molar mass 90 g mol -1) in water has a density of 1.29 g/mL. Calculate the mole fraction of the salt in the solution
A dog searching for a bone walks 4.00 m south, then 8.20 m at an angle of 30.0° north of east, and finally 12.0 m west. Use graphical techniques to find the direction of the dog's resultant displacement vector. Give the direction of the result
Calculate the initial rate of the NO reduction at 1100 K if 400.00 mg of NO and 600.00 mg of H2 are confined to a 5.00 L reaction vessel.
How many grams of H2O can be cooled from 45 degrees C to 15 degrees C by the evaporation of 63 grams of water. The heat of vaporization is 2.4 KJ/gram and the Specific Heat of water is 4.18 J/gK.
Discuss the Black Legend and how to compare this legend to what Spain's approach was to exploration, conquest, and colonization.
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