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- Part A Rank the solutions in order of increasing concentration of hydronium ions, H30" (a) hydrogen chloride, HCI (concentration 2 M); (b) acetic acid, CH₂COOH (concentration 2 M); (e) ammonia, NH, (concentration 2M) Rank from least to most. To rank items as equivalent, overlap them. Least DO The correct ranking cannot be determined. Submit Previous Answers Request Answer X incorrect; Try Again; 4 attempts remaining Reset Help MostIndicate the concentration of each ion present in the solution formed by mixing the following. (Assume that the volumes are additive.)(a) 60 mL of 0.100 M HCl and 10.0 mL of 0.570 M HClH+ Cl - (b) 15.0 mL of 0.341 M Na2SO4 and 17.8 mL of 0.200 M KClNa+ K+ SO42- Cl - (c) 3.50 g of NaCl in 45.8 mL of 0.252 M CaCl2 solutionNa+ Ca2+ Cl -Consider the reaction of 66.5 mL of 0.310 M NaC₇H₅O₂ with 50.0 mL of 0.245 M HBr. (Ka of HC₇H₅O₂ = 6.3 x 10⁻⁵) a)Write the net ionic equation for the reaction that takes place. (In terms of C, H2O, H3O+, O, H, H+, OH-) b) How many moles of C7H5O2- would be present before the reaction takes place? c) How many moles of H+ would be present before the reaction takes place? d)What species would be left in the beaker after the reaction goes to completion? e) How many moles of C7H5O2- would be left in the beaker after the reaction goes to completion? f) How many moles of HC7H5O2 would have been produced after the reaction goes to completion? g) What would be the pH of this soultion after the reaction goes to completion?
- Please don't provide hand written solution....6 4 The active ingredient formed by aspirin in the body is salicylic acid, CH₂OH(CO₂H). The carboxyl group (-CO,H) acts as a weak acid. The phenol group (an OH group bonded to an aromatic ring) also acts as an acid but a much weaker acid. What are all of the ionic and molecular species present in a 0.001-M aqueous solution of CH₂OH(CO₂H) in order of descending concentration? 4 A B C D [H₂O]> [C_H_OH(CO₂H)]> [H*]>[C_H₂OH(CO₂) -]>[C_H₂O(CO₂H¯)]> [OH-] [H₂O]>[H+]>[C_H₂OH(CO₂H)]>[C_H_OH(CO₂)¯]>[C.H₂O(CO₂H¯)]>[OH-] [H₂O]> [C_H_OH(CO₂H)]> [CH₂OH(CO₂)-]> [C_H_O(CO₂H-)]> [OH-]>[H+] [+H]] ] <[0²H]NH4F is a salt made from a weak base and a weak acid. The following questions are related to a 0.250 M NH4F (aq) solution at 25 degrees C. The Ka for HF (aq) is 6.8 ×10-4 and Kb for NH3 (aq) is 1.8 × 10-5. (a) What is the equation for the overall hydrolysis of NH4F (aq)? (b) What is the pH of this solution? (c) What is the equilibrium concentration of NH3?
- A student is provided with a 0.1 M stock solution of NaOH. Student was then asked to mix 50.0 mL of this stock solution of NaOH with 450.0 mL of water to prepare a dilute solution of NaOH. (A) Calculate the molarity of the diluted solution. (B). Calculate the hydronium ion concentration, [H3O+] in the final diluted solution. (8 points) (C ) Calculate the pH of the diluted NaOH solution. (D) Is the final diluted solution acidic, basic or neutral?A road tanker carrying an acid was involved in an accident and its contents spilledon the road, iron drain covers began melting and fizzing as the acid ran over them. ASpecialist was called to se if the acid actually leaked into the nearby river.(a) Explain how the specialist could carry out a simple test to see if the river water contains some acid or not.(b) The word melting is incorrectly used in the report. Suggest a better name that should have been used.(c) Explain why drain covers began fizzing as the acid rain over them.determine the percent ionization of the following solutions of formic acid at 25°C: (а) 0.066 М _% (b) 3.7 х 10-4М x 10^__ % (Enter your answer in scientific notation.) (c) 1.65 M
- The lactate ion, C, H,O, (aq), reacts with water to form lactic acid and hydroxide ion. C;H,05 (aq) + H, O(1) = HC,H;O;(aq) + OH (aq) In a 0.378 M solution of sodium lactate, the [OH¯] = 5.2 × 10-6 M. Use the ICE table to determine the concentrations of OH¯ and HC, H,O,. You will use these values to calculate the Kp for HC,H,O3. C;H;O5 (aq) + H,O(1) = HC,H;O,(aq) + ОН (аq) initial 0.378 change +x +x equilibrium 0.378 – x What is the value for x in these expressions? Hint: you are given this value in the problem. x = MA railroad tank car derails and spills 26 tons of concentrated sulfuric acid (1 ton = 907.185 kg). The acid is 98.0% H2SO4 with a density of 1.836 g/mL.(a) What is the molarity of the acid? (b) Sodium carbonate, Na2CO3, is used to neutralize the acid spill. Determine the kilograms of sodium carbonate required to completely neutralize the acid. (c) How many liters of carbon dioxide at 18°C and 745 mm Hg are produced by this reaction?Calculate the pH of each of the following solutions. (a) 0.109 M HONH, (Ko = 1.1 x 10-3) 4.0 9.34 X (b) 0.109 M HONH3CI 4.0 2.64 (c) pure H₂O 7.00 X (d) a mixture containing 0.109 M HONH₂ and 0.109 M HONH₂CI 4.0 6.20 X