Using the following chemical equations, determine how the equilibrium will be affected if the pH is increased?   CO2(g) + H2O(l)  ⟷⟷ ⟷⟷    H2CO3(aq)     H2CO3(aq)    ⟷⟷ ⟷⟷    H+1(aq) + HCO3-1(aq)

5) Find the concentration of H30*(aq) in a 1.75 M solution of lactic acid, HC3H5O3, at 25°C. Ka= 1.38 x 10*. 6) Write the equilibrium expression for the ionization of HOI, and calculate the concentration of HOI(aq) in solution if [H3O*]=2.3 x 10° M and pKa = 10.7 at 25°C.

What is [OH-] in a solution of 1.25 M NH3 and 0.85 M NHANO3? NH3 (aq) + H20 (1) = NH4+ (aq) + OH- (aq) Kp=1.8x10-5 Write your answer with 2 significant digits.

The antibiotic Penicillin G is obtained from a mold and is treated before being ready for human consumption.  Penicillin G is a weak acid with Ka = 1.6 x 10-3. Using HP to represent this weak acid, in water the following reaction represents an equilibrium that could develop.  HP (aq)    ↔↔     H+(aq)   +   P- (aq)   Use the quadratic equation to solve for the equilibrium concentrations (that result from a 1.0 x 10-4 M solution of Penicillin G, HP) of each component.

Which of the following given statements is NOT true? 1.  Oxygen from the air does not dissolve in large bodies of water. Lajos Winkler developed the Winkler Titration Method to determine the amount of dissolved oxygen in water.  The purpose of the sulfuric acid in the experiment on determining the dissolved oxygen in a water sample is to make the sample acidic. 2. Deeper levels of water often do not reach 100% air saturation equilibrium because they are not shallow enough to be affected by the waves and photosynthesis at the surface. The dissolved oxygen content is an important index when considering its suitability for town supply. An acidic solution will have a pH greater than 7. Which of the following given statements is true? 3. During and after the collection of the sample of water to be used in the DO determination, it is advisable for the flask with water to contain bubbles. In DO determination, 100% air saturation means that the water is holding more dissolved gas molecules…

Question 5 (1 point) Equimolar quantities of potassium fluoride and hydrofluoric acid are placed into solution. The equilibrium established is as follows: HF(aq) + H2O(l) F¯(aq) + H30+(aq) What happens to the above equilibrium if some acetic acid is added to the solution? Acetic acid ionizes so pH significantly increases. Acetic acid isn't in the equilbrium equation so it will have no effect on the pH of the solution. The acetic acid creates more hydronium ion so the equlibrium shifts left and pH is not changed significantly. The acetic acid creates more hydronium ion so the reaction shifts right and pH is not changed significantly.

Give reagents and conditions for the following reaction. Ph Ph, Br Br Br Ph Br Br Ph Br Ph Ph

For the following equilibrium reaction: NaOH(Aq) + HCl(aq) HOH(aq) + NaCl(aq) + Δ What happens if you add: A) KCl B)KBr

In the following reaction, identify the Bronstead-Lowry acid and base.

For the reaction below, Kc = 1.10 × 10⁻⁸. What is the equilibrium concentration of OH⁻ if the reaction begins with 0.610 M HONH₂? HONH₂ (aq) + H₂O (l) ⇌ HONH₃⁺ (aq) + OH⁻ (aq)