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An experiment similar to the one in this module was performed to determine the solubility and the solubility product constant of gallic acid, a monoprotic organic acid (molar mass = 170.12 g/mol). The equilibrium involved is:
C6H5O3COOH (s) --> C6H5O3COO- (aq) + H+ (aq)
Titrations using 0.114 M NaOH were performed, and the following data were obtained:
temperature of solution = 20.2oC
volume of acid solution titrated = 25.00 mL
volume of NaOH solution used = 14.61 mL
Given the following informationp redict whether or not the hypothetical ionic compound AX is likely to form. In this compound, A forms the A+ cation, and X forms the X?anion. Be sure to justify your answer.
What is the value of the equilibrium constant for Haber process at 298K if the equilibrium concentration are as follows:
In a qualitative analysis procedure, a chemist adds HCl to an unknown group of ions and then saturates the solution with H2S so that the solution is 0.1 M in HCl and 0.10 M in H2S. (a) What is the [HS -] of the solution
A two-component mixture of volatile liquids was separated by gas chromatography using a 25 meter capillary column. The separation was insufficient with this column to see resolution of both fractions
Compute the heat amount required to heat a 3.9kg gold bar from 28 degree Celsius to 68 degree Celsius. Given Specific heat capacity of gold = 0.128 J/g°C.
Rubidium has a heat of vaporization of 69.0 kJ/mol and an entropy of vaporization of 71.9 J/K mol. Calculate the boiling point of rubidium.
After filtering off this precipitate, the pH is adjusted to 8 and H2S is again added; no precipitate forms. No precipitate forms upon addition of (NH4)2HPO4. The remaining solution shows a yellow color in a flame test. Based on these observations,..
Nicotine, a stimulant found in tobacco, has the mass percent composition: C, 74.03%; H, 8.70%; N, 17.27%. The molar mass of nicotine is 162.23 g/mol. Find the molecular formula of nicotine.
what are the pH and the change in pH after the addition of 0.054 mol hydrochloric acid to the buffer solution?
Hard water deposits are largely CaCO3. Propose a way to remove these deposits from plumbing fixtures.
Utilizing the relative rate factors of 1.0:2.5:4.0 for primary: secondary: tertiary hydrogens in 2-methylbutane, Compute the expected composition of the monochlorinated mixture obtained from 2, 4-dimethylpentane.
Balance the following reactions. You may have to supplement the reaction with H+, H2O, or OHdepending on the reaction conditions
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