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Newest Acid-Base Chemistry Questions

1. Which comparison is correct?(1 point) Responses PH3 is a stronger acid than NH3 . cap p cap h sub 3 is a stronger acid than cap
   1. 1 answer
   2. asked by pickles
   3. 159 views
2. Strong base is dissolved in 665 ml. of 0.200 M weak acid (K, 4.73 x 10-5) to make a buffer with a pH of 4.10, Assume that the
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   2. 75 views
3. Strong base is dissolved in 665 ml. of 0.200 M weak acid (K, 4.73 x 10) to make a buffer with a pH of 4.10. Assume that the
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4. Strong base is dissolved in 665 ml. of 0.200 M weak acid (K, 4.73 x 10) to make a buffer with a pH of 4.10. Assume that the
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   2. 28 views
5. Which change would decrease the pH of a base in a solution at equilibrium?(1 point)Responses increasing the strength of the base
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6. What is the pH of a 1×10−4mol HCl solution?(1 point) Responses 2 2 8 8 6 6 4
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7. Use the reaction to answer the question.HCl + H2O → Cl–+ H3O+ Which statement about the reaction is correct? (1 point)
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8. Use the reaction to answer the question.HCl + H2O → Cl–+ H3O+ Which statement about the reaction is correct? (1 point)
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   2. 47 views
9. what makes a compound a base
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10. Does a weak base have a lot of OH- or very little
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    2. 15 views
11. What is hydronium and hyroxyl ions
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    2. 18 views
12. Identify the conjugate acid-base pairs in the following chemical equation. Check all that apply.HBr(aq)+OH^-(aq) -> <-
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    2. 26 views
13. Calculate [H3O^+] for a solution of nitric acid for which pH = 4.91. Round your answer to 2 significant figures.
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    2. 30 views
14. Unit 6 Activity 2: Weak Acid/Weak Base Calculations [9 marks]4. A weak acid solution with a concentration of 0.0107 M has a pH
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    2. 65 views
15. Calculate the pH of a 1.0 × 10-* M solution of HBr. Be sure your answer has the correct number of significant figures.
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    2. 46 views
16. Distinguish clearly between the strength of an acid and the concentration of an acid. And hydrolysis and hydration of an ion.
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    2. asked by J success Akoi
    3. 32 views
17. Ostwald theory of acid base titration
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    2. 29 views
18. Calculate the pH from each H3OT concentration.Part 1 of 2 [H30 *= 5.00 x 10-7 pH = M. Be sure your answer has the correct number
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    2. 75 views
19. 0.035 miles of Acetic Acid (CH3COOH) are dissolved in 150mL of water. What is the pH of this solution? Ka=1.58x10^-5
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    2. 28 views
20. In titrations curve of a weak acid, at the equivalence point of the solution contains only of* 1 point The conjugate acid buffer
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    2. asked by Mo
    3. 68 views
21. Calculate the pH of a 0.005M H2SO4 which dissociated completely in water
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    2. 28 views
22. Which is not a property of an acid?slippery feel reacts with a metal tastes sour
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    2. 66 views
23. Calculate the pH of 0.005M H2SO4 which dissociated completely in water?
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    2. 33 views
24. What does Henderson hassalbalch relate pH to kpa
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    2. 41 views
25. Determined the PH of 0.30 M acetic acid with the ka of 1.8×10 ^-5
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26. Acid-Base Titration Calculations• Example 2: A titration of 50.00 mL of an unknown concentration of H2SO4 with standardized
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    2. 84 views
27. Acid-Base Titration Calculations• Example 1: 30 mL of 0.10 M NaOH neutralized 25.0 mL of hydrochloric acid. Determine the
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    2. 86 views
28. What is the Ka value for this acid? Fill in the following ICE table to help you.
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    2. asked by Will
    3. 51 views
29. Calculate [H_3O^+] for a solution of hydroiodic acid for which pH = 2.31. Round your answer to 2 significant figures.
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    2. 44 views
30. Calculate the pH of a 1.0 × 10^-6 M solution of HI. Round your answer to 2 decimal places.
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    2. 40 views
31. Classify each species as either a Bronsted-Lowry acid, Bronsted-Lowry base, or as amphiprotic. Select the single best answer for
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    2. 107 views
32. hydroxide ion concentration when pOH=0.5
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33. Calculate the pH of a 1.0 × 10^-5 M solution of HCl. Be sure your answer has the correct number of significant figures.
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    2. 26 views
34. Use the "My solution mode" simulation to complete the activity.Acid-Base Solutions Describe how you could adjust the settings of
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    2. asked by iknj
    3. 85 views
35. help me with this Calculate the value ofH3O+ and OH] Note: Reference the Fundamental constants table for additional information.
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    2. 54 views
36. can you help me with this Determine the conjugate base of each species.Part 1 of 3 For HBr, the conjugate base is Part 2 of 3
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    2. 120 views
37. Suppose we have a 1.0M solution of acetic acid, CH3COOH, and a solution of 0.1M hydrochloric acid, HCl. Which of the following
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    2. 130 views
38. refer to the hydrolysis of ammonium sulfate to determine whether it's pH will be less than 7, equal to 7 or greater than 7.
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    2. 42 views
39. Which example is an Arrhenius base?Question 7 options: HClO4 HF CH4 Ca(OH)2
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    2. 49 views
40. What will cause the pH to increase and the Kwto decrease?increasing the temperature decreasing the temperature adding a strong
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    2. asked by talis sanchez
    3. 55 views
41. If the concentration of a sample of aqueous hydrosulfuric acid is 0.050 mol/L , then the hydronium ion concentration
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    2. 89 views
42. What would the titration of a polyprotic acid with a strong base look like?
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    2. 49 views
43. Match each hydronium ion concentration to its correct pH value. Round your pH value to the nearest tenth.Column A 1. The pH of a
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44. A weak acid solution has a pH of 3.86. if the acid solution has a concentration of 0.38, what would the Ka be for this acid
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    2. 62 views
45. Which is not a conjugate acid-base pair?a) H3O+ and H2O b) H2O and OH- c) NH3 and NH2-- d) NH4+ and NH3 e) HNO2 and H2O
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    2. 126 views
46. ChemistryThe hydronium ion concentration of lemon juice is 5 x 10^ –3. A sample of lemon juice will have [OH–] value of
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    2. 83 views
47. How do phenolphthalein, bromothymol and methyl orange behave in acid base titration
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    2. asked by Kelvin
    3. 111 views
48. answer the following questions how does increasing the concentration of H3O+ ions affect the PH of a solotion? as you increase
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    2. 102 views
49. Why does nh3+ not have the same pka as nh3?
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    2. 50 views
50. If the hydroxide ion (OH-) concentration is greater than the hydronium ion (H3O+) concentration, then what is the solution?A.
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51. When HBr is introduced to water to generate a solution, what impact does this addition have on the pH level of the water?HBr
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52. Which acid-base chemical reaction is irreversible?(1 point)Responses weak acid added to water weak acid added to water water on
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53. Which option correctly shows the concentration of H3O+ ions in pure water?A. 1.0 × 10-7 mol/L B. 1.0 x 10-14 mol/L C. 7 mol/L
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54. Calculate the pH of the following:0.02mol of methanoic acid (HCOOH) are given Ka(HCOOH)=1.78×10^-14.
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    2. asked by Samantha simbi
    3. 158 views
55. 4. Calculate the [𝐻^+ ] 𝑎𝑛𝑑 [𝑁𝑂_3^( −) ] of a 0.175M solution of nitric acid, 𝑁𝐻𝑂_3^( −).5.
    1. 11 answers
    2. 289 views
56. What is the pH of a buffer made by mixing 1.00 L of 0.020 M benzoic acid, HC,H,O,, with 3.00 L of 0.060 M sodium benzoate,NaC
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    2. asked by James
    3. 169 views
57. Suppose that 0.10 liter of 0.50 molar hydrochloric acid is added to 0.040 liter of the bufferprepared in (b). Compute the
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    2. asked by Psy
    3. 171 views
58. The Brønsted-Lowry definition of an acid is
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    2. asked by Swim
    3. 141 views
59. A solution has [H3O+][ H 3 O + ] = 6.2×10−5 M M . Use the ion product constant of water Kw=[H3O+][OH−] K w = [ H 3 O + ] [
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    2. 113 views
60. A 0.1 molar solution of nitrous acid is 7.1 percent ionised at equilibrium what is theA. Concentration Hydrogen ion and ph B. Ka
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    2. asked by Rich addunya
    3. 182 views
61. A volume of 500.0 mL of 0.160 M NaOH is added to 625 mL of 0.250 M weak acid (𝐾a=1.95×10−5). What is the pHof the
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    2. asked by Lee
    3. 124 views
62. What is the conjugate acid-base in this reaction HSO3 plus water
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    2. asked by Akanbi
    3. 117 views
63. Calculate the pH of a 4.80M solution of NaOH.I got 14.68, but is this too high? I did -log(4.8), then subtracted 14 - (-0.6812)
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    2. asked by j
    3. 159 views
64. Calculate the pH of the solution, when 50ml of 2.0HNO2(ka=4×10^-4) titrated with 50ml of 1.0MKOH
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    2. asked by Kebeki
    3. 249 views
65. If a buffer solution is 0.100 M in a weak acid ( 𝐾a=4.9×10−5) and 0.440 M in its conjugate base, what is the pH?
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    2. asked by Drew
    3. 273 views
66. What is the pH of a 1.0 M H2SO3 solution?(K1 = 1.2 x 10-2, and K2 = 6.6 x 10-8
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    2. asked by jaylord
    3. 365 views
67. A solution containing nitric acid (HNO3) is to be used in the neutralization titration of a sodium hydroxide (NaOH) solution.a.
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    2. asked by BBen
    3. 518 views
68. If the OH- ion concentration in an aqueous solution at 25.0 oC is measured as 6.0 x 10‑4 M, then the pH of the solution is
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    2. asked by ana
    3. 535 views
69. Can someone solve this for me?10.0mL of 0.10M HCl is added to a 100.0 mL of a 0.10M solution of NaCO2H (sodium formate). What is
    1. 1 answer
    2. asked by Rachel
    3. 326 views
70. Consider the titration of 100.0 mL of 0.100 M HC2H3O2 by 0.100 M KOH for the next five questions (Ka for HC2H3O2 = 1.8 x 10-5).
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    2. asked by Abbie
    3. 1,320 views
71. Calculate the pH of a 2.67×10-3 M solution of H2SO4.(Ka = 0.0120 for HSO4-)
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    2. asked by Abbie
    3. 957 views
72. Calculate [H+] for a 1.20×10-3 M aqueous solution of acetic acid (HC2H3O2; Ka = 1.80×10-5).b) Calculate the pH of the above
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    2. asked by Abbie
    3. 510 views
73. A solution contains 4.5 × 10 -3M HCl. Determine the following: a. [H 3 O + ] b. [OH -] c. pH
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    2. asked by suzac
    3. 673 views
74. What is the pH of the buffer system after the addition of 0.10 mole of gaseous HCl to 1 L of the solution. With a buffer system
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    2. asked by Dr xD
    3. 1,927 views
75. With the same initial solution of 0.75 moles formate and 0.85 moles formic acid to make a buffer solution. The Ka of formic acid
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    2. asked by Zin
    3. 757 views
76. A buffer is prepared by dissolving 0.0250 mol sodium nitrite in 250 mL of 0.0410 Mnitrous acid. Assuming no volume change from
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    2. asked by Anonymous
    3. 724 views
77. A vessel contains 500. milliliters of a 0.100-molar H2S solution. For H2S, Ka1 = 1.0 X 10-7 andKa2 = 1.3 X 10-13 (a) What is the
    1. 1 answer
    2. asked by Madison
    3. 620 views
78. Consider 25.0 mL of 0.100M HA (HA is a fictional acid), for which Ka=1.00x10^-5, titrated with 0.0500M NaOH solution. What is
    1. 2 answers
    2. asked by Asterix
    3. 483 views
79. A 1.0L buffer solution contains 0.100 mol of HC2H3O2and 0.100 mol of NaC2H3O2 The value of Ka for HC2H3O2 is 1.8×10−5.
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    2. asked by Anonymous
    3. 1,353 views
80. The pH of an NH3 and NH4Cl solution is 9.20. What is the [H3O+]
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    2. asked by Leaf02
    3. 701 views
81. Calculate the pH of a 2.00 M NH4CN solution.
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    2. asked by jill
    3. 594 views
82. How can you determine if NH4ClO2 is an acid, base, or neutral using Ka and Kb values?
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    2. asked by winter
    3. 1,301 views
83. The pH of a 0.060 M weak monoprotic acid, HA is 3.44. Calculate the Ka of the acid.
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    2. asked by mae
    3. 2,299 views
84. what is the pH of a buffer that is 0.76 Min HF and 0.98 M in NaF
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    2. asked by Fred
    3. 804 views
85. What are the concentrations of HOAc and OAc- in a 0.2 M “acetate” buffer, pH 5.0? The Ka for acetic acid 1.70x10-5 (pKa
    1. 3 answers
    2. asked by Noura
    3. 1,571 views
86. Given that 60.0 mL of 0.550 M NH4+ is titrated with 0.550 M NaOH. The Ka for NH4+ is 5.60x10^-10. Calculate the pH of the
    1. 2 answers
    2. asked by Ava
    3. 443 views
87. Calculate the PH of a buffer solution by mixing 74ml of 1.0M lactic acid and 25ml of 1.0 sodium lactate having a Pka of 3.86
    1. 2 answers
    2. asked by Serah
    3. 1,123 views
88. Calculate the pH of 0.15M hydrazoic acid, HN3. Ka = 1.8 x 10-5 .
    1. 1 answer
    2. asked by mary
    3. 758 views
89. Calculate the pH of the solution resulting from the addition of 75.0 mL of 0.15 M KOH to 35.0 mL of 0.20 M HCN (Ka (HCN) = 4.9
    1. 2 answers
    2. asked by The anonymous
    3. 2,343 views
90. What is the pH and pOH of a solution made by adding water to 15 grams of hydroiodic acid until thevolume of the solution is 2500
    1. 2 answers
    2. asked by Student 6
    3. 1,987 views
91. Which can be used as a standard solution in neutralization titrations?a. Na2CO3 c. CH3COOH b. NaHCO3 d. NaOH
    1. 7 answers
    2. asked by necmi
    3. 566 views
92. The pH of a 0.25 M aqueous solution of hydrofluoric acid, HF, at 25.0 °C is 2.03. What is the value of Ka for HF?
    1. 2 answers
    2. asked by Anonymous
    3. 2,330 views
93. how can i calculate the ph of a stock acetic acid solution given the following: pKa of acetic acid=4.75, concentration of acetic
    1. 4 answers
    2. asked by opera
    3. 582 views
94. 30 mL of 1 M HCl were added to 200 mL of 0.1 M lysine solution having pH = pKa of the side-chain amino group. What is the new
    1. 0 answers
    2. asked by FS
    3. 482 views
95. Calculate the pH of a buffer solution containing 1.0 mol/dm3 CH3COONa.I need a step by step solution and explanation. thank you
    1. 1 answer
    2. asked by Linda
    3. 834 views
96. Calculate the hydrogen ion concentration, pH, POH, OH‐ in 0.02 H2SO4?
    1. 1 answer
    2. asked by somto
    3. 789 views
97. The pH of an arterial blood sample is 7.15. Upon acidification of 10 ml of the plasma 5.91ml of CO2 is produced at standard
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    2. asked by Ploopy
    3. 686 views
98. The pH of an arterial blood sample is 7.15. Upon acidification of 10 ml of the plasma 5.91ml of CO2 is produced at standard
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    2. asked by Monika
    3. 610 views
99. Calculate the pOH of a 15 mL sample of 0.76 mol/L hydrosulfuric acid given that it only dissosiates 92% in solution.
    1. 2 answers
    2. asked by Lena
    3. 822 views
100. Why do we assume 100% ionization for acetic acid (a weak acid)? This is a titration problem. The titrant is sodium hydroxide, if
     1. 3 answers
     2. asked by AJ
     3. 704 views