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Problem- Using chemical equations, show how the triprotic acid H3PO4 ionizes in water. Phases, such as (l) or (aq), are optional.Depict the entire solution
A weather balloon is inflated to a volume of 26.5L at a pressure of 735mmHg and a temperature of 24.5 degreed C. The balloon rises in the atmosphere to an altitude, where the pressure is 390.mmHg and the temperature is -13.9 degrees C.
how many grams of acetylene are produced by adding water to 5g of CaC2?
A particular first-order reaction has a rate constant of 1.35x10^2 at 20 degrees C . What is the magnitude of k at 75 degrees C if Ea =85.6Kj/mol?
A 1.245 gram sample of a compound containing barium and oxygen was dissolved in hydrochloric acid to give a solution of barium ion, which was then completely precipitated out with an excess potassium chromate to give 2.012 grams of barium chromate..
Iron and oxygen react to form iron(III) oxide; 4Fe(s)+3O2(g)-->2Fe2O3(s). Determine the limiting reactant in each of the following mxtures of reactants
What concentration of CrO4-2 is needed to precipitate as much Ba+2 as possible without precipitating the Ca+2. (BaCrO4:Ksp=2.1x10^-10; CaCrO4:Ksp=7.1x10^-4)
How many moles of hydrogen gas are produced when 0.066 mole of sodium is completely reacted?
Determine which H atom transition (ninitial,nfinal) was responsible for the emission of a photon with a frequency of 6.91 x 1014 Hz.
Calculate the uncertainty (in nm) in the position of an electron with the velocity of 2.00x103 m/s (the velocity is the same as in the preceding problem) and the uncertainty in the velocity is 1%. (2 significant figures are plenty).
how much of each solution do you need to prepare 1 L of buffer containing 20 mM glucose, 30 mM dihydrogen sodium phosphate, and arginine 1 mM? Explain in words how would prepare this solution.
Calculate thePH at the equivalence point in titrating 0.100 M solutions of each of the following with 9.0×10^ 2 M NaOH... calculate the ph for HCLO2
What is the minimum wavelength of light needed to break the C-C bond? Could UV lamps be used to break the C-C bond?
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