9. In `CH,OH 5. A buffer solution contains H2CO3 and HCO3, resulting in the equilibrium shown by the reaction belo According to this reaction and LeChatelier's principle, what happens when acid (H3O*) is removed from this buffer solution? H2CO3 + H20 HCO3 + H3O* a. More HCO3 is formed. b. More H20 is formed. C. More H2CO3 is formed d. Less HCO3 is formed. e. The reaction shifts to the left.

10. Consider the following reaction: H2S (g) S H2 (g) + S (g) Kp = 1.67 × 10-7 and Ps eg' PH,S = 1.00 × 10-4 atm. Determine PH,S PH, n initial

we How many grams of H2SO4 (98.lg/mol) are required to react with 4.0g of NaOH(40.0 g/moſ) in- this neutralization reaction? 32. H2SO4 + 2NAOH N22SO4 + 2H2O а. 2.4g b. 4.9g c. 9.fg d. 20.0g e. None of the above

O D. K = 1 OE K 1 QUESTION 25 A solution is prepared by adding 0.10 mol of iron(III) chlorite, Fe(CIO)3, to 1.00 L of water. Which statement about the solution is correct Periodic table.pdf OA. The solution is basic. O B. The solution is neutral. OC. The solution is acidic. O D. The values of Ka and Kb for the species in solution must be known before a prediction can be made. Type here to search e も DOLL

Predict the direction in which the equilibrium will lie for the reaction: HF + ClO2− ⇆ HClO2 + F− Ka (HF) = 7.2 x 10−4; Ka (HClO2) = 1.1 x 10−2 a. to the left b. none of thses c. in the middle d. to the right

sign 14 X Layout Α' Α A References Mailings Aa v 13 test4F 2022 - Compatibility Mode - Saved to my Mac Tell me P E EVE- A b. If we increase the pressure: 8. Acids produce a. Water b. Hydroxide ions c. Hydrogen ions Review English (United States) 7. For this balanced equation, at equilibrium which way will the reaction proceed (forward, reverse, it won't make a difference)? N₂O4(s)- → 2NO2(g) a. If we increase the NO, 2(g) concentration: 9. What is an amphiprotic substance: Ev b. A substance that produces a salt c. A substance that produces water View a. A substance that can act as an acid or a base Accessibility: Unavailable, tv AL Au V 10. Which of the following shows the dissociation of a strong acid? a. HC202Hs H+ + C2O₂Hs™ b. HCI H+ + Cl- c. NH3 + H₂O → NH4+ OH- d. NaOH → Na+ + OH- 11. Show the reaction of NH3 (weak base) with water: ¶ MacBook Air AaBbCcDdE AaE Normal No Focus

A 0.121 M solution of acetic acid has a pOH of 11.20. What is the Ka of acetic acid? Oa. 2.5 x 10-6 Ob. 2.1 x 10-5 Oc. 3.3 x 10-22 Od. 1.6 x 103 Oe. 1.3 x 102

The pH of a solution containing a hydrogen ion concentration of 1 x 10-5 is:  A. 3 and its pOH is 6B. 3 and its pOH is 7C. 5 and its pOH is 8D. 5 and its pOH is 9

All of the following compounds are insoluble in water except ____.A. BaCO3 B. PbCl2 C. Fe(OH)3 D. Ni(CH3COO)2 E. PbCrO4