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- Write the chemical formual of acid: Cl-(aq0+HS04-(aq) HCI(AQ+SO42-(aq)(b) What will happen if acetic acid (HC2H3O2) is added to water? O An equilibrium will form between its molecular form, HC2H3O2, and the species formed by removal of water, C2H2O. O An equilibrium will form between its molecular form, HC2H3O2, and the species formed by addition of water, H3C2H3O3. O Acetic acid is a strong acid and will ionize completely. O An equilibrium will form between its molecular form, HC2H3O2, and the ionized form, H* and C2H3O2. O Acetic acid is a weak acid and will not ionize completely. Hint Attempts: 1 of 15 used Submit Save for Later TIng I aI system, SOme of UIS energy Can De transieIICU To une su t ST國 ост 15 MacBook AirCarbon dioxide dissolves in water according to the equations:CO2( g) + H2O(l )<----->H2CO3(aq)H2CO3(aq) + H2O(l)<----->HCO3-(aq) + H3O+(aq)Carbon dioxide levels in the atmosphere have increased about 20% over the last century. Given that Earth’s oceans are exposed to atmospheric carbon dioxide, what effect might the increased CO2 be having on the pH of the world’s oceans? What effect might this change be having on the limestone structures (primarily CaCO3) of coral reefs and marine shells?
- 24. A solution of volume 0.500 L contains 1.68 g NH3 and 4.05 g (NH4)2SO4. (a) What is the pH of this solution? (b) If 0.88 g NaOH is added to the solution, what will be the pH? (c) How many milliliters of 12 M HCl must be added to 0.500 L of the original solution to change its pH to 9.00?Is H2Cr2O2 an acid, base, or neutral? please justify your answer with an equation showing its dissociation.You found a bottle of aqueous solution in the laboratory cabinet. Unfortunately, the label has been eroded and you could not recognize it. To the best of your recollection, it may be one of the following solutions: HCl CH3COOH CH3CH2COOH A mixture of HF and NaF (both of substantial amount) A mixture of H3PO4 and NaH2PO4 (both of substantial amount) NH4Cl NaHCO3 In order to identify the solution, you conduct the following experiments: Using a pH meter, you determine the pH of the solution to be 3.00. You dilute 20 mL of the solution with water to a total volume of 200 mL and measure the pH again, this time it reads 3.50. You take some volume of the solution, add phenolphthalein, and titrate it with NaOH solution until the mixture turns pink. You record the volume of the required titrant as Vt and the pH meter reads 9.05. In a separate flask, you take the same volume of the unknown solution as in step iii and titrate it with the same NaOH…
- You found a bottle of aqueous solution in the laboratory cabinet. Unfortunately, the label has been eroded and you could not recognize it. To the best of your recollection, it may be one of the following solutions: HCl CH3COOH CH3CH2COOH A mixture of HF and NaF (both of substantial amount) A mixture of H3PO4 and NaH2PO4 (both of substantial amount) NH4Cl NaHCO3 In order to identify the solution, you conduct the following experiments: i.Using a pH meter, you determine the pH of the solution to be 3.00. ii. You dilute 20 mL of the solution with water to a total volume of 200 mL and measure the pH again, this time it reads 3.50. iii. You take some volume of the solution, add phenolphthalein, and titrate it with NaOH solution until the mixture turns pink. You record the volume of the required titrant as Vt and the pH meter reads 9.05. iv. In a separate flask, you take the same volume of the unknown solution as in step iii and titrate it with the same NaOH solution, but this time…7b. What is the strongest intermolecular interaction that would occur between a molecule of NH3 with a molecule of SbH3? 7c-d. In aqueous solution, NH3 (aq) acts as a weak base. 7c. When NH3 is added to otherwise pure water, we would expect: (circle answers) The concentration of OH- (aq) to: (i) increase (ii) decrease (iii) stay the same The pH to: (i) increase (ii) decrease (iii) stay the sameHow could you distinguish NH4Cl and AgCL? (a) By smell (b) By color (c) By solubility in water (d) By taste
- What volume of 0.50 M KOH would be required to neutralize completely 500mL of 0.25 M H 3 PO 4 solution?When the reversible reaction HC2H;O2 (aq) E> H(aq) + C2H3O2 (aq) is at equilibrium at room temperature, pH of the reaction mixture is 5. What will be the change in pH when you add a large amount of NaOH (aq) to the reaction mixture? a) pH will not change because NaOH is not a part of the reaction equation. b) pH will not change because acetic acid and NaOH form a buffer. c) pH will increase because NaOH will completely neutralize acetic acid. d) pH will decrease because NaOH will completely neutralize acetic acid. In the reversible reaction A (aq) + B(aq) E > C(aq), reactant A is very expensive. What are two ways to get it to react as fully as possible to form as much C as possible? a) remove C as it forms, and use an excess of A b) add another reactant that will form a precipitate with B c) remove C as it forms, and use an excess of B d) add another reactant that will form a precipitate with AHNO3 is Available at a concentration of 18M. What Volume would you need in mL to obtain 0.250mol?
