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A solution of the weak base, aniline, C6H5NH2, in 25.0 mL of water requires 25.67 mL of 0.175 M HCl to reach the equivalence point.
C6H5NH2 (aq) + H3O+ (aq) <---> C6H5NH3+ (aq) +H2O (l)
What was the concentration of aneline in the original solution?
What are the concentrations of H3O+, OH-, and C6H5NH3+ at the equivalence point?
What is the pH of the solution at the equivalence point?
Sketch a qualitative MO diagram for [Ni(NH3)6]2+ and identify the portion of the diagram considered by crystal-field theory. Imagine the ammonia ligands were all exchanged with a ?-donor ligand.
We have learned that valence bond theory helps us to predict s and p bonding in molecules. All of the following statements about molecular bonding are true, but which statement best summarizes the most basic premise for bonding in a molecule?
a 25 ml sample of .147 m propionic acid hc3h5o2 is titrated with .104 m koh solution. the equivelence point is reached
Liquid nitrogen has a density of 0.808g/ml at 77 K. A sample of 2.5 L of liquid nitrogen is allowed to evaporate at 21°C and 1.00 atm of pressure. what volume will the nitrogen gas occupy?(keep your phases straight)
At 1.00 atm and 23 C, how many liters of carbon dioxide are formed by the combustion of 3.40g of butane?
Write down the Empirical Formula if aA Compound Is 21.20% nitrogen, 6.06% Hydrogen, 24.30% sulfur , And 48.45% Oxygen?
Estimate the value of the equilibrium constant at 625 {rm K} for each of the following reactions. Delta H{^{circ}_{rm f}} and S{^{circ}} for rm BrCl(g) is 14.6 {rm kJ/mol} and 240.0 frac {rm J}{rm mol cdot K}, respectively.
Consider the constitutional isomers 2-methylbut-1-ene, 2-methyl-2-ene and 3-methylbut-1-ene. when each of these alkenes is subjected to cataltic hydrogenation (H2, Pt), a single product results. which of the following best describes the structural..
Calculate the height of a column of methanol that would be supported by atmospheric pressure. The density of methane is .787 g/cm^3.
Assume that you have carried out a radical chlorination reaction on (R)-2- chloropentane and have isolated (in low yield) 2,4-dichloropentane.
During the isomerization of trans-1,2-dibenzoylethylene C16H12O2 using 95% Ethanol C2H6O , and UV light irradiation. What is the overall equation for this reaction. What is the product.
You want to produce a mixture containing 19 wt% NaCl. Find the volume of the second feed solution.
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