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What is the pH of a solution containing 1.079 mol L-1 of a weak acid with pKA = 4.99 and 0.917 mol L-1 of another weak acid with pKA = 7.72?
A 639 keV x-ray photon scatters from an electron at rest, deflecting through 111°. What is the scattered photon's energy?
Discuss in detail, one way in which atomic nuclear decay takes place. What is the significance of atomic nuclear decay? Analyze the societal implications of using this process.
What is the pathological process of cholelithiasis? How are stones formed? Why does eating cx acute pain?
How many grams of carbon dioxide will you get if you burn 400 pounds of hydrocarbon that contains 93.75% carbon to completion? the molecular mass of the hydrocarbon is 128
Effective teachers do more than just go through the motions of writing their lesson content and language objectives on the board.
solid sodium is added to liquid water and reacts to produce hydrogen gas and aqueous sodium hydroxide. Write a balanced chemical equation for this reaction.
Furthermore, you conducted the experiment using Styrofoam coffee cups because of their effective insulation capabilities. Therefore, you were able to accurately measure the molar enthalpy change of the acid-base reaction.
A mixture of cis and trans GKW was analyzed using UV-Vis spectroscopy to make absorption measurements at two different wavelenghts. From the data given below, calculate the molar concentrations of the cis and trans isomers
why do you think peonin peonin is a red pigment found in the petals of peony flowers is bonded to two hexoses? what
A breathing mixture used by deep sea divers contains helium, oxygen, and carbon dioxide. What is the partial pressure of oxygen in this mixture with a total pressure of 101.3 kPa if PHe = 84.0 kPa and PCO2 = 0.10 kPa?
Find the maximum temperature (for cases a and b) that can be attained in the burning of methane at constant P according to the reaction CH4(g) + 2O2(g) --> CO2(g) + 2H2O(g)
Problem- Assuming equal concentrations and complete dissocation, rank these aqueous solutions by their freezing points.
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