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Explain the pKa of acetic acid is 4.75. Suppose acetic acid is found in a solution with a pH of 4.75 which of the following?
A. The acid exists predominately in the prorogated form.
B. The acid exists predominately in the deprotonated form.
C. The concentrations of the prorogated and the deprotonated form of the acid are equal.
A galvanic cell is constructed with a silver-silver chloride electrode, and a nickel strip immersed in a beaker containing 1.56 x 10-2 M solution of NiCl2. Determine the balanced cell reaction and calculate the potential of the cell. Enter in Volt..
If 49.0g of H3PO4 is reacted with excess KOH, determine the percent yield of K3PO4, if you isolate 49.0g of K3PO3.
c6h14 is an organic solvent that has a density 0.6603 gcm 3 at the temperature of twenty degree celsius. when hexane
The standard molar enthalpy of fusion of ice is 6.01 kJ/mol. The desities of ice and liquid water at 0 degree celcius are 0.9167 and 0.9998 g/cm3.
C6H5OH(s) + 7O2(g) --> 6CO2(g) + 3H2O(g) A 2.000 gram sample of pure phenol, C6H5OH(s), is completely burned according to the equation above.
If yeast were supplied with glucose labelled with 14C at the C-1 position to produce ethanol and CO2 anaerobically, would the label appear in the CO2
Calculate the change in pH when 9.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq).
Description of physical chemistry, Find delta Smix, delta Gmix, delta Hmix, and delta Vmix if 125 g of benzene and 25 g of naphthalene are mixed at 60 degrees C.
Although I understand half-cell reactions, I'm puzzled by how to approach the following corrosion reactions. Iron in an acid ferric sulfate solution. Carbon steel in aerated seawater
The nuclide 198 au 79 has a half life of 64.8 hours. what is the rate constant for the decay of 198 au 79. how much of a 0.0100g sample of 198 au 79 remians after 1 day.
Ocean currents are measured in Sverdrups (sv) where 1 sv=10^9 m^3/s. The Gulf Stream off the tip of Florida has a flow of about 35sv.
When heated, KClO3 reacts to produce KCl and O2. How many grams of KClO3 are needed to produce 791 ml of O2 at STP conditions?
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