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Describe an expreiment to determine the molal freezing point depression constant (Kf) for a solvent of you choice.
A 3.50-g sample of magnesium hydroxide was treated with 50.0 mL of a 0.500 M aqueous sulfuric acid solution. Calculate the number of grams of magnesium hydroxide that remained undissolved.
The solubility of silver phosphate in pure water and Na3PO4, Silver Phosphate, Ag3PO4, is an ionic compound with a solubility product constant Ksp of 206 x 10 ^ - 18.
the indicated ph value for the titration of 50.00 ml of .100 M benzoic acid (ka = 6.3 x 10^-5) with .0500 M KOH: ph = 4.20, 4.50.8.06, 11.50. write te reaction for KOH reacting with benzoic acid and the equilibrium for each pH value
A solution is made by dissolving 0.100 mols of NaOCl in 100.0 mL of water. The Ka of hypochlorous acid (HClO) is 3.0*x10^-8 at 25.0 C. a.) Write any relevant chemical equations or equilibrium reactions.
Identify the Lewis acids in the following two equilbrium systems: System A: CO2 + H2O ? H2CO3 System B: Zn2+ + 6H2O ? Zn(H2O)62+ A. A: H2O; B: H2O B. A: CO2
Understanding Vapour Pressure, Which would you expect to exhibit the highest vapor pressure at room temperature?
Hydrochloric acid B) Ammonium Hydroxide 2) Identify the geometry of the iron(III) complex in water and the complex ions produced in the above reactions
What is the purpose of distilling two mixtures whose boiling points are very close.
The boiling point of water is about 200 degrees Celcius higher than one would predict from the boiling points of hydrogen sulfide and hydrogen selenide. One may explain this apparent anomaly by which of the following?
carboxylic acids react with alcohols to form esters which are found in all plants and animals. what is the percent by mass of carbon in each of the following esters?
How much heat is required to warm 225 grams of ice from negative 46.8 degrees celsius 0 degrees celsius melt the ice, warm the water from 0 degrees celsius to 100 degrees celsius.
Standard potentials measured against the standard hydrogen electrode, Standard potentials are measured against the standard hydrogen electrode (S.H.E.). Because it is not always convenient to use a S.H.E
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