Chemists working with fluorine and its compounds some- times find it helpful to think in terms of acid-base reac- tions in which the fluoride ion (F¯) is donated and ассеpted. (a) Would the acid in this system be the fluoride donor or fluoride acceptor? (b) Identify the acid and base in each of these reactions: CIF;O2 + BF; CIF,O, · BF, -- TiF, + 2 KF – K2[TiF,]

Someone is attempting to measure the H3PO4(aq) content of an unknown solution by both titration with NaOH(aq) and calorimetry. The person measures 100 mL of stock NaOH(aq) solution into a buret but forgets to write down its concentration. They then measure out 50.0 mL of unknown H3PO4(aq) solution (which has an indicator) and places this solution in a constant-pressure calorimeter for the titration experiment. The initial temperature of all the solutions is 22.9 Celsius. The student adds 46.84 mL of NaOH(aq) from the buret to the H3PO4(aq) solution in the calorimeter to reach the equivalence point (color change for indicator). The final solution temperature is 33.5 Celsius. Assume density and specific heat of all solutions are the same as that of pure water and that volumes are additive.    a) what is the balanced molecular equation for the acid-base reaction that takes place in the calorimeter? b) Calculate delta HRXN (enthralpy) for the above acid-base reaction c) what is the…

Give the complete ionic equation for the reaction (if any) that occurs when aqueous solutions of H2SO4 and KOH are mixed. OH(aq) + OH¯(aq) → H₂O(l) O H+ (aq) + OH(aq) + 2 K+ (aq) + SO4²-(aq) → H+ (aq) + OH¯(aq) + K₂SO4(s) O No reaction occurs. O 2 K+ (aq) + SO4²- (aq) → K₂SO4(s) H+ (aq) + OH Taq) + 2 K+ (aq) + SO42 (aq) → H₂O(l) + 2K+ (aq) + SO4²- (aq)

Identify the base in the following acid–base reaction:

Consider a solution prepared by adding 2.70 g acetic acid, CH3CO2H, to 122.8 g of H2O. (a) what is the percent by mass concentration of acetic acid in the solution? (b) what mass of acetic acid is present in 25.0 g of this solution?

Aluminum sulfate, known as cake alum, has a remarkably wide range of uses, from dyeing leather and cloth to purifying sewage. In aqueous solution, it reacts with base to form a white precipitate. (a) Write balanced total and net ionic equations for its reaction with aqueous NaOH. (Type your answer using the format (NH4)2CO3 for (NH4)2CO3, [NH4]+ for NH4+, and [Ni(CN)4]2- for Ni(CN)42-. Use the lowest possible coefficients. Type the cation before the anion.)overall equation  (aq) +  NaOH(aq)    (aq) +   (s)net ionic  (aq) +   (aq)    (s)(b) What mass of precipitate forms when 104.5 mL of 0.616 M NaOH is added to 517 mL of a solution that contains 18.4 g aluminum sulfate per liter?  g

In the following acid-base titration experiment NaOH(aq) + HNO3(aq) ———> NaNO3(aq) + H2O(1). What is the molarity of the HNO3 solution if 18.3 mL of 0.115 M NaOH was used to neutralize 25 mL of HNO3? (a) 0.157 M (b) 0.0842 M (c) 3.978 M (d) 0.0157 M

The following reaction represents the process known as photosynthesis: 6CO₂(g) + 6H₂O(l) + sunlight → C₆H₁₂O₆(aq) + 6O₂(g). Is photosynthesis a redox reaction? Justify your answer using redox principles.

Does KOH (aq) + Co(CH3COO)3 (s)  yield H2 gas along with potassium acetate and Cobalt(III) hydroxide?   Please don't send me a generic answer...

Much of the sulfur used in the United States comes from the hydrogen sulfide contaminant that makes "sour" natural gas smell bad. Hydrogen sulfide is separated from the other components of natural gas mostly by taking advantage of its acid-base reaction with aqueous ethanolamine: HO(CH,),NH,(aq)+H,S(g) → HO(CH,),NH,(aq)+HS (aq) Suppose an engineer decides to study the rate of this reaction. She prepares four reaction vessels with 167.6 mL of ethanolamine solution and 20.9 g of hydrogen sulfide gas each. The volume and temperature of each vessel is shown in the table below. Arrange the reaction vessels in decreasing order of initial rate of reaction. In other words, select a "1" next to the vessel in which the engineer can reasonably expect the initial rate of reaction to be highest, a "2" next to the vessel in which the initial rate of reaction would be next highest, and so on. vessel volume temperature A B C D 5.0 L 5.0 L 5.0 L 5.0 L 49, °C 48. °C 51. °C 50. °C X initial rate of…