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A 0.50% (w/w) aqueous solution of acetic acid has a density of 0.9989 g mL-1. (a). Calculate the molality and the molarity of the acid in this solution. (b). This solution freezes at -0.1590c. Calculate the degree of dissociation (he fraction of molecules dissociated) for the acid in this solution. (You may assume that the mean ionic activity coefficient has a value of 1). (c) From the degree of dissociation, determine the acidity constant (Ka) for this acid
Cu2+(aq) + Zn(s) ---> Cu(s) + Zn2+(aq) A galvanic cell that uses the reaction shown above has a standard state electromotive force of 1.1 volts. Which of the following changes to the cell will increase the voltage
Gives what happens at low pH for aluminum hydroxide. A) Al(OH)3 precipitates B) Al precipitates C) Al dissolves D) Al(H2O)63+ dissolves
A solution of NaOH(aq) contains 8.0 g of NaOH(s) per 100.0 mL of solution. Calculate the pH and the pOH of the solution at 25 °C
The hydration of carbon dioxide (add water to CO2) produces carbonic acid and is part of the equilibrium that controls carbon dioxide levels in the blood during respiration of vertebrate organisms. How can this reaction be explained using the Lewi..
Calcule the platinum electrode potential (vs. NHE), immersed in solution containing 0.50 M Br2 KBrO3 0.20 M at pH = 2.5
Starting with standard reduction potentials calculate the values of e cell and delta g of the following reactions:
construct a lewis structure for hydrogen peroxideh2o2 in which each atom achieves an octet of electrons.do you expect
the balanced equation for a reaction in the process of the reduction of iron ore to the metal is shown below.fe2o3s 3
determine the volume of co2 at a temperature twenty two degree celsius and a pressure of 781 mmhgnbsp could be absorbed
holds .35 L at 4.5 atm pressure. What is the volume when the gas is released into 1.0 atm pressure
Order these five gases that occur in the troposphere from most abundant to least abundant: Rn, CO2, CO, N2, Ar and O2.
Analysis of water in a sediment sample at equilibrium at ph 7.00 showed [so42-] = 2.00 x 10^-5 m and a partial pressure of h2s of 0.100 atm. show with appropriate calculations if methane, ch4, would be expected in the sediment.
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