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Compute the pH at the equivalence point in the titration of 45mL of 0.190 M methylamine with a 0.305 M HCL solution.Compute the pH of 0.33M NaF solution. Ka for HF=7.1x10-4
Compute the partial pressure of Ar(g) that is needed to achieve this. You may assume that delta(vap)H for water is independent of temperature and pressure
When ammonia is added to nickel ions in aqueous solution, the water molecules bound to the Ni2+ are replaced by ammonia molecules.
Present a reaction mechanism for the sodium iodide in acetone test which explains the relative rate of reactivity of 1°, 2°, and 3° halides.
A 20 mg sample of a compound is dissolved in 5.0 ml of water and extracted with 2.5 mL of heptane. After separation of the layers, the heptane layer is found to contain 15 mg of the compound. What is the partition coefficient of the compound, Khep..
Explain what mole ratio of molecular chlorine to molecular oxygen would result from the breakup of compound Cl2O7 into its constituent elements
Determine the number of electron pairs (both bonding pairs and lone pairs) on the iodine atom in the following.
The original molarity of a solution of formic acid with a Ka of 1.7x10^-4. Its pH is 4.52 at equilibrium is _____ mol/L
When glucose, C6H12O6, is oxidized in our bodies energy is produced. In addition,CO2, is produced as a gas. The carbon dioxide gas eventualy finds its way from the cells to the lungs where it is expelled from the body
Write the cell reaction and electrode half-reactions and calculate the standard potential of each of the following cells
What is the change in the measurement of the potential if a solution of 1.00x10-3 M NaF is exchanged for another solution of 1.00x10-4 M NaF?
Lead metal can be extracted from a mineral called galena, which contains 86.6% lead by mass. A particular ore contains 68.5% galena by mass.
The vapor pressure of water is 439 mm Hg at 358 K, and the enthalpy of vaporization is 40.7 kj/mol.
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