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The Ka of formic acid (HCOOH) is 1.8 x 10^-4. What is the pH of 0.35 M solution of sodium formate (NaHCOO)?
State the reaction A+2B -> products has the rate law, rate = k[A][B]^3. If the concentration of B is dobled while that of A is unchanged, by explain what factors will the rate of reaction increase
Problem- The equilibrium constant, K, for a neutralization reaction can be symbolized as Kn. Using Kw, Ka, and Kb values, determine Kn for the following reaction at 25° C.
at 400 K, the rate of decomposition of a gaseous compound initially at a pressure of 12.6 kPa, was 9.71 Pa/s when 10.0 % had reacted and 7.67 Pa when 20.0 % had reacted.Determine the order of reaction.
The boiling point of an aqueous 1.83 m (NH4)2SO4 (molar mass = 132.15 g/mol) solution is 102.5 *C. determine the value of the vant hoff factor for this solute if the kb for water is 0.512*C/m
As the mole fraction of a species in an ideal solution increases, Explain does its partial molar entropy increase or decrease
chromium iii hydroxide is highly soluble in distilled water but dissolves readily in either acidic or basic solution.
Air contains nitrogen, oxygen, argon, and trace gases. If the partial pressure of nitrogen is 587 mmHg, oxygen is 158 mmHg, argon is 7 mmHg, and the trace gas pressure is negligible, what is the atmospheric pressure
One piece of copper jewelry at 108 degrees Celsius has exactly twice the mass of another piece, which is at 44 degrees Celsius. Both pieces are placed inside a calorimeter whose heat capacity is negligible. What is the final temperature inside the..
A certain substance has a heat of vaporization of 58.15 kJ/mol. At what Kelvin temperature will the vapor pressure be 3.00 times higher than it was at 363 K
the barometric pressure in a cavern was measured using a mercury barometer. a value of 28.2 inches of hg was obtained.
Suppose a mixture of two solutions is prepared by mixing 105.-mL of 0.0335 M solution with 35.0-mL of 0.932 M of the same solute (Z). What is the concentration of Z in the combined solution
The elements in Group 6A(16) are sometimes called the chalcogens. The symbol and atomic number of the only metallic chalcogen are (a) and (b)
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