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A 1.076 L sample of HF gas at 22.0 degrees C and 0.601 atm pressure was dissolved in enough water to make 50.5 mL of hydrofluoric acid. A) What is the pH of the solution? B) To what volume must you dilute the solution to triple the percent dissociation?
The enthalpy of formation (?Hf) of rubidium chloride is -430.5 kJ/mol. The enthalpy of sublimation for rubidium is 86 kJ/mol, and the first ionization energy of rubidium is 402 kJ/mol. The bond dissociation energy of (g) is 243 kJ/mol, and the ele..
What absorption is diagnostic of benzophenone and not present in benzhydrol (give frequency and functional group); and what absorption is diagnostic of benzhydrol and not present in benzophenone
you have two water samples. sample x has a volume of 750 ml and a temperature of 42c. sample y has a volume of 380 ml
What is the percent yield for iron if the reaction of 65.0 of iron(III) oxide produces 45.0 of iron if Iron(III) oxide reacts with carbon monoxide to produce iron and carbon dioxide.?
Ice has the unusual property of a melting point that is lowered by increasing pressure. if this is the reason we can skate on ice, would a 75-kg skater whose skates contact the ice with an area of 0.1cm^2 be able to skate at -3C
What is the empirical formula of a hydrocarbon that is 92.3% C and 7.69% H. Given the molar mass is 78.0 g/mol, what is the molecular formula of the hydrocarbon
Sulfur dioxide in the effluent gases from coal-burning electric power plants is one of the principal causes of acid rain. One method for reducing SO2 emissions involves partial reduction ofSO2 to H2S followed by catalytic conversion of the H2S and..
A weak acid with a starting concentration is 12.5% dissociated. a) Calculate the [H3O+], pH, [OH-] and pOH of the solution. ([OH-] = 1.1 × 10-13 M, pOH = 12.96
What volume of 3.00 M NaOH must you add to the acetic acid to achieve a buffer with a pH of 5.00 at a final volume of 500 mL? (Ignore activity coefficients.)
The FDA recommends that women who are pregnant avoid eating more than three 6.00-oz servings of bluefish per month because of the relatively high mercury levels in that type of fish.
identify the spectator ion s in the following equationhclaq li2co3aq rarr lihco3aq
Consider the following reaction for the dissociation of benzoic acid (MW=122 g x mol^-1) in water where Ka for benzoic acid is 6.5 x 10^-5. C6H5COOH(aq) + H2O (l) C6H5COO-(aq) + H30+(aq)
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