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Presume first order. k=4.80s^-1, and after 3.70 s at a temperature of 4.00K, 8.40moles of O2 remain from an unknown original amount. Explain what is the original amount?
A beaker with 160 mL of an acetic acid buffer with a pH of 5.00 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 6.40 mL of a 0.400 it M HCl solution to the beaker. How much will the..
f gas reacts with nh3 gas to produce n2f4 tetrafluorohydrazine or dinitrogen tetrafluoridenbspand hfhydrogen fluoride.
Define Supercritical fliud. Give an example and it's properties. Which fundemental thermodynamic property is important to the solubility
Magnesium hydroxide is 54.87% oxygen by mass. How much oxygen is in 114 g of the compound?
If a mixture of gases contained 78% nitrogen at a preasure of and 22% carbon dioxide at , what is the total preasure of the system
Consider the subsequent reaction, equation concentrations, as well as equilibrium constant at a particular temperature. Find out the equilibrium of SO3(g)
A 0.551 L solution of 1.51 M oxalic acid (Ka1= 6.5e-2 and Ka2 = 6.1e-5) is titrated with 1.85 M KOH. What will the pH of the solution be when 0.8140 L of the KOH has been added
The pH at 1/2 the equivalence point in an acid/base titration was found to be 5.32. What is the value of K sub a for this unknown acid
What is the maximum concentration of Cd2+ that can exist in a solution in which the S2- concentration is 2.5 x 10-6? Ksp(CdS) = 8.0 x 10-27
At 14 degree Celsius, it takes 7:26 minutes (446 sec) for acetone, HCl, and iodine solution (color changed from yellow to clear) to react.
Calculate [H2S], [HS -], [S2-], [H3O+], pH, [OH -], and pOH in a 0.15 M solution of the diprotic acid hydrosulfuric acid. Calculate [H2C3H2O4], [HC3H2O4?], [C3H2O42?], [H3O+], pH, [OH?], and pOH in a 0.197 M solution of the diprotic acid malonic ac..
Calculate the concentrations of all species in a 1.10 M Na2SO3 (sodium sulfite) solution. The ionization constants for sulfurous acid are Ka1=1.4x10^-2 and Ka2=6.3x10^-8.
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