You must show your work to receive credit. pH = -log[H₂O 1.(4 pts) For each [H3O+]...
2. (4 pts) For each [OH-] below, give the [H30+1 a. 10.0 x 10-6 M b. 8.4 x 10-4 M 11x 10 3. (4 pts) For each pH below, give the [H3O+]. 10. a. 8.5 b. 2.9 10 PH 13.16 x 10-a 11.26 * 10 31 4. (4 pts) Give the conjugate base for each acid below. a. HPO4-2 b. HNO3 NO 5. (4 pts) Give the conjugate acid for each base below. a. H2N- b. PH3 IHN
please show all work neatly 5. (2 pts) Consider the following acids and their dissociation constants HPO4-2(aq) + H2O.. H3O"(aq) + PO4-3(aq) Ka-2.2x 10.13 HCOOH(aq) H20 H3O (a) HCOO (aq) Ka = 1.8x10-4 a. Which is the weaker acid, HPO42 or HCOOH? b. What is the conjugate base of, HPO42 or c. Which acid has the weaker conjugate base? d. Which acid produces more ions? 6. (2 pts) Write a balanced equation for the neutralization of H3PO4(aq) and NaOH(aq) (3...
H₂N 6. (4 pts) Identify which reactant is the acid and which is the base in each reaction below. a. NH3 + HF → NH4+ + F- B H b. HSO4 + HCO3 + H2CO3 + SO42 ft в the acid. 7. (4 pts) Complete the acid/base reactions below. The first reactant given is a. H2PO4 + C0:2 → P04 +, b. HNO3 + H2O - N02"+ H, 0
2. A buffer is prepared by partially titrating 50.00 mL of 0.964 M benzoic acid using 0.100 M NaOH until the pH is 4.80. Ka for benzoic acid is 6.3 x 10-5. (o)ce pts) What ratio of the conjugaite base-to-conjugate acid i equrd to establish p 4 (b) (1 pts) What volume of the titrant is required to achieve pH 4.80? (c) (2 pts) What are the final concentrations of the conjugate acid and conjugate base? 2. A buffer is...
please help with this hw ?! Answer the Q. In the spaces below. Use the back of the page if necessary. 1. Give the conjugate bases for the following Bronsted-Lowry acids: a) H2SO4 b) HNO; c) H20 d) OH e) H3PO4 Ans. a). 2. Give the conjugate acids for the following Bronsted-Lowry bases: a) CO32- b) HPO42. c) H2PO4 d)NH2 e) NH3 Ans. a) b) 3. Calculate the pH of a 0.025 M solution of barium hydroxide. 4. Show how...
Problem 2 - 12 pts You want to prepare a buffer around a pH of 3.90, so you choose lactic acid (C3H.Os) and its conjugate base. The K. of lactic acid is 1.4 x 10 A. What is the formula of the conjugate base of lactic acid? (2 pts) B. In order to prepare your buffer at the intended pH of 3.90, you start with a solution of 1.25 moles of lactic acid. How many moles of the conjugate base...
Homework pH Name: pH log HaO' H3O'1-10pH Given: and 1) Classify each solution as acidic, basic, or neutral according to its pH value: a) pH 13.0 b) pH 7.25 c) pH 0.85 2) Calculate the pH of each solution (3 sig figs): a) [HO] 8.25 x 10%11 M b) [HO 2.75x 10*M c) [HO']= 3.25 x 104 M 3) Calculate the concentration of hydronium ion, [H3O'], for each solution to 3 sig figs a) pH 8.44 b) pH 1.86 c)...
I need help with all three questions please and thank you! *four 4. Consider the reaction: 2 SOX) + g) = 2 50 (8) A 2.0 L flask was filled with 0.0400 moles o. 00200 moles of O. At equilibrium 0.0296 moles of so, were found what is the equilibrium constant for this reaction? A) 2.556 x 10 + B) 3.664 x 10 C) 6.953 x 102 D) 9.964 x 102 E) 3.116 x 10 5. What is a conjugate...
2. Calculate the pH of the following solutions: (a) [H3O+] = 1.4 x 10-'M (b) [OH-] = 3.5 x 10-2M (c) pOH = 10.5 3. What is the pH of a 0.10 M solution of HCIO4? (A strong acid) 4. Write the dissociation reaction and the corresponding K, expression for the following acids in water. (a) H3PO4 (b) C&H OH 5. Write the reaction and corresponding Ko expression for each of the following bases in water. (a) NH3 (b) PO4...
For each of the following strong base solutions, determine [OH−],[H3O+], pH, and pOH 4.8 x 10^-4 M Ca(OH)2