pH units) decrease by a large amount (> 0.10 pH units) 8) For the chemical reaction...
7) For the chemical reaction NH3(aq) + HCl(aq) → NH4*(aq) + CF (aq) the acid and conjugate base are a) NH3 (acid); NH4+ (conjugate base) b) NH3 (acid); CI (conjugate base) c) HCl (acid); NH3 (conjugate base) d) HCl(acid); NH4* (conjugate base) e) HCl (acid); CI (conjugate base)
7) For the chemical reaction NH3(aq) + HCl(aq) + NH4" (aq) + Cl(aq) the acid and conjugate base are a) NH; (acid); C (conjugate base) b) NH; (acid); NH4 (conjugate base) c) HCI (acid); Cl"(conjugate base) d) HCI (acid): NH (conjugate base) e) HCI (acid); NHA (conjugate base) 8) A buffer solution is formed by adding 0.0100 moles of potassium dihydrogen phosphate (KH_PO4) and 0.0100 moles of potassium hydrogen phosphate (K,HPO) into 1.000 liters of water. When 0.0010 moles of...
8) For the chemical reaction NH3(aq) + HCl(aq) → NHA" (aq) + Cl(aq) the acid and conjugate base are a) HCl (acid); CH(conjugate base) b) HCl(acid); NH; (conjugate base) c) HCI (acid); NHA" (conjugate base) d) NH3 (acid); NH4* (conjugate base) e) NH, (acid); CI (conjugate base)
urgent 7) For the chemical reaction NH3(aq) + HCl(aq) + NH4+(aq) + Cl(aq) the acid and conjugate base are a) NH3 (acid); NH" (conjugate base) b) NH; (acid); CF (conjugate base) c) HCl (acid); NH3 (conjugate base) d) HCl (acid); NHa* (conjugate base) e) HCI (acid); C(conjugate base)
5) For a particular chemical reaction it is found that the value for the equilibrium constant for the reaction decreases as temperature increases. Based on this we can conclude a) AH>0 b) AH® < 0 c) AS > 0 d) AS 0 e) AG < 0 6) When 0.0100 moles of dimethyl amine ((CH3)2NH) is added to 1.000 liters of water, the pH of the water increases above the value pH = 7.0 found for neutral solutions. Based on this,...
7) A buffer solution is formed by adding 0.0100 moles of potassium dihydrogen phosphate (KH2PO4) and 0.0100 moles of potassium hydrogen phosphate (K_HPO4) into 1.000 liters of water. When 0.0010 moles of NaOH is added to this solution, what will happen? a) The pH of the solution will increase by a small amount (< 0.10 pH units) b) The pH of the solution will increase by a large amount > 0.10 pH units) c) The pH of the solution will...
7) For the chemical reaction NH3(aq) + HCl(aq) → NH- (aq) + CH(aq) the acid and conjugate buse are a) NH3 (acid); NHÀ (Conjugate base) b) NH, (acid), CI (conjugate base) c) HCI (acid); NH; (conjugate base) d) HCI (acid); NHA (conjugate base) e) HCI (acid), CI (conjugate base)
7) For the chemical reaction NH(aq) + HCl(aq) → NH"(aq) + Cl(aq) the acid and conjugate base are a)NH(acid): NH" (conjugate base) b) NH, (acid), CT (conjugate base) c) HCl(acid); NH (conjugate base) d) HCl(acid), NH, (conjugate base) c) HCI (acid) Conjugate base) 8) A buffer solution is formed by adding 0.0100 moles of potassium dihydrogen phosphate (KH-PO.) and 0.0100 moles of potassium hydrogen phosphate (K_HPO) into 1.000 liters of water. When 0.0010 moles of NaOH is added to this...
10. For an aqueous solution labeled "0.10 M potassium bromide," A) the pH is greater than 7. B) the pH = 13. D) the pH is less than 7. E) the pH = 7. C) the pH = 1. 11. For a 0.10 M solution of a weak acid, HA, with pKa = 6, which of the following is true? A) [HA] =[A-] B) [HA] does not equal [H3O+] C) [HA] =[H3O] D) [HA] = K E) [HA] = 0...
Write the chemical reaction of each of the following reaction, indicate the product(s) formed and calculate the pH at the equivalence point of each of the following titration, and choose the apropriate indicator for the titration. (A) Titration of a strong acid with a strong Base: 0.10 M HCl with 0.10 M NaOH (B) Titration of a weak acid with a strong Base: (i) 0.10 M acetic acid (Ka = 1.8x10-5), CH3COOH (or HOAc for short) with 0.10...