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Problem- What mass of sodium hydroxide must be added to 75.0 mL of 0.205 M acetic acid in order to create a buffer with a pH of 4.74? acetic acid Ka=1.8x10^-5
Please perform what you can and illustrate your work so I can follow. Thanks
if oxygen gas were collected over water at 22 degrees celsius and the total pressure of the wet gas were 650 mm hg what
Calculate the pH of a solution made by adding 11.0 g of sodium formate, NaHCOO, to 400. mL of 0.65 M formic acid, HCOOH. Hint what kind of solution is made
Gibbs free energy differences between axial-substituted and equatorial-substituted chair conformations of cyclohexane were given in table 2.4. Calculate the ratio of equatorial to axial tert-butylcyclohexane at 25 degrees C
silver nitrate solution is mixed with sodium sulfide solution producing a black solid and sodium nitrate solution
The sulfur is converted first to SO2, which reacts with oxygen and atmospheric moisture to produce sulfuric acid, H2SO4. If a particular coal contains 0.95% sulfur (by mass), calculate the mass of sulfuric acid produced by burning a metric ton (10..
An ion having a 4+ charge as well as a mass of 49.9 amu has 2 electrons with principal quantum number n = 1, 8 electrons with n = 2, and 10 electrons with n = 3. Supply as several of the properties for the ion as possible from the information give..
explain how and why carbon can experience sp sp2 and sp3nbspvia hybridization and what role this plays in the geometry
Determine the pH of a 0.227 M C5H5N solution at 25°C. The Kb of C5H5N is 1.7 x 10-9.
Calculate the concentration of C6H5NH3+ in this buffer solution b) Calculate the pH after 4.0 g of NaOH(s) is added to 1.0 L of this solution (neglect volume changes)
The reaction that was on the screen when you started and its derivative demonstrate that the change in enthalpy for a reaction, ?H, is an extensive property. Using this property, calculate the change in enthalpy for Reaction 2.
While an additional mol of gas is added at constant temperature as well as volume to a flask containing 2.00 mol of gas at 25C and 1.00atm pressure, the pressure increases to 1.60 atm.
A 16 ounce specialty coffee drink contains 200 mg caffeine. If all the caffeine is extracted and dissolved in an equal amount of water, what is the pH of the solution? What is the percent ionization
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