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1. Calculate the pH after 0.0 mL of KOH has been added. 2. Calculate the pH after 20.0 mL of KOH has been added. 3. Calculate the pH after 25.0 mL of KOH has been added. 4. Calculate the pH at the equivalence point. 5. Calculate the pH after 100.0 mL of KOH has been added.
Since the freezing point of a solution depends on the number of particles, what would you expect the freezing point of 0.1 m solutions of aqueous NaCL and BaCl2?
If 77.0 mL of hydrogen gas is collected over water at 50.0 degrees celsuis and 763 mm Hg, what is the volume of dry gas at standard conditions? The vapor pressure of water is 92.5mm Hg at 50.0 degrees celsuis .
Thermal measurements show that deltaH for the I---->II phase transition is -743.1 J/mole, and deltaS for the same transition is -17.0 J/K/mole. At what temperature are solids I and II in equilibrium
A solution is made by mixing equal masses of methanol, CH4O, and ethanol, C2H6O. Determine the mole fraction of each component
How many grams of butane must be burned to provide the heat needed to melt a 85.0-g piece of ice (at its melting point) and bring the resulting water to a boil (with no vapourization)? Assume a constant pressure of 1 bar and use the following data
volatile solute was dissolved in 40.0 grams of CCl4. The boiling point of the CCl4 was raised by .357 Degrees C. Kb for CCl4 is 5.02 C/m find the molar mass of the solute.
Does beta-D-fructose in its cyclic form have the same number of chiral carbons as beta-D-glucose?
How much heat is absorbed when 28.3g H2O(s) at 0 degrees celcuis is converted to liquid at 0 degrees celcius
In an acid-base titration 14.7 mL of .107M NaOH (aq) sodium hydroxide is needed to react to an end point with .1252 grams of H2C2O4 oxalic acid. Determine the molarity of the aqueous sodium hydroxide solution. 2NaOH + H2C2O4 ----> 2HOH + Na2C2O4
NaOH + CO2 -> Na2CO3 + H2O. If the average human body discharges 745 g of CO2 per day, how much NaOH is needed each day for each person in the spacecraft.
Consider a cylinder filled with air with a piston and spring arrangement on top. The external pressure is 1 bar, the initial temperature of the air in the cylinder is 25 C.
A line in the emission spectrum of an atom occurs at a wavelength of 560 nm. What is the energy difference between the two energy levels involved in this emission.
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