Which substance(s) is/are a strong enough acid to react almost completely with NaOH? (The pK_a of...
Question:
Which substance(s) is/are a strong enough acid to react almost completely with NaOH? (The {eq}\displaystyle pK_a \ of \ H_2O {/eq} is 15.74.)
Reactivity of Acids and Bases:
A base reacts with an acid to form a conjugate acid, while an acid reacts with a base to assemble a conjugate base. Remember, an acid and base reaction involves protons; acid is a proton donor proton the base is defined as the proton acceptor. These terms can be confusing, but they are the key to understanding acid and base chemistry.
Answer and Explanation: 1
Become a Study.com member to unlock this answer! Create your account
View this answerThe conjugate acid of the strong base {eq}NaOH {/eq} is the weak acid {eq}H_2O {/eq}.
From an organic chemistry perspective, any acid with a pKa...
See full answer below.
Ask a question
Our experts can answer your tough homework and study questions.
Ask a question Ask a questionSearch Answers
Learn more about this topic:

from
Chapter 5 / Lesson 13Learn about organic acids. Understand what organic acids are and their functional group. List their examples and general properties. Explore their use.
Related to this Question
- Ordinarily, alcohols are not strong enough acids to react completely with NaOH. Why is the alcohol 4-ethylphenol different? What is its approximate pKa?
- Which of the following is a strong acid/base? i. A solution with pK_a = 4.74 or pK_a = 2.5. ii. A solution with K_b = 1.8 times 10^{-5} or 9.5 times 10^{-8}.
- Which of the following solutions is a strong acid? a. 0.1 M HCl b. 0.1 M HC2H3O2 c. 0.1 M NaOH d. 0.1 M NH3
- Which of the following is most likely produced by the reaction of a strong acid with a strong base? a. HBr b. KNO3 c. NaOH d. C6H12O6
- What is the pK_a of a compound used to make a buffer of pH 10.65 using 3 times as much conjugate base than the weak acid?
- Which of the following solutions is a weak acid? a. 0.1 M HCl b. 0.1 M HC2H3O2 c. 0.1 M NaOH d. 0.1 M NH3
- Which acid should you use to make a buffer with a pH of 8.0? a. formic acid (pKa = 3.75) b. hypobromous acid (pKa = 7.54) c. boric acid (pKa = 9.27)
- Which of the following compounds would give an acidic solution when dissolved in water. A. HNO_3 B. CH_4 C. NH_3 D. NaOH
- Which of the following acids is the stronger, (a) boric acid, pKa = 9.0, or (b) acetic acid, pKa = 4.6?
- Which of these compounds would be the best buffer at pH 5. Formic acid (pKa = 3.8), acetic acid (pKa = 4.76), or ethylamine (pKa = 9.0)? Briefly justify your answer.
- Which of these acids is a component in vinegar? a) H2SO4 b) HCl c) HNO3 d) NaOH e) CH3COOH
- Which acid should you use to make a buffer with a pH of 5.2? a. acetic acid (pKa = 4.75) b. fluoroacetic acid (pKa = 2.59) c. hypochlorous acid (pKa = 7.54)
- Which of the following bases are strong enough to deprotonate CH_3CH_2CH_2C \equiv CH \ (pK_a = 25) so that equilibrium favors the products: (a) H_2O
- Which of the following bases are strong enough to deprotonate CH_3CH_2CH_2C \equiv CH \ (pK_a = 25) so that equilibrium favors the products: (d) NH_3
- Which of the following bases are strong enough to deprotonate CH_3CH_2CH_2C \equiv CH \ (pK_a = 25) so that equilibrium favors the products: (b) NaOH
- What substances are produced when an acid reacts with a base?
- Which of the following solutions is a strong base? a. 0.1 M HCl b. 0.1 M HC2H3O2 c. 0.1 M NaOH d. 0.1 M NH3
- Which substances are always produced in an acid-base neutralization reaction?
- Which of the following is a Bronsted acid? (a) CH3COOH (b) NaOH (c) NH3
- What is the net ionic reaction of HCl (a strong acid) with NaOH (a strong base)? a. H + (aq) + OH^{-}(aq) \rightarrow H_{2}O(l) b. H_{2}O(l) \rightarrow H + (aq) + OH^{-}(aq) c. HCl(aq) + NaOH(aq) \rightarrow NaCl(aq) + H_{2}O(l)
- What are the molecular and net ionic equations for the following acid-base reactions? 1) strong acid/strong base: HCl + NaOH 2) weak acid/strong base: CH_3COOH + NaOH 3) strong acid/weak base: HCl + NH_4OH
- Which of the following compounds is a strong acid? (A) HI (B) HF (C) HClO2 (D) H3PO4 (E) HNO2
- What is the pKa for the following weak acid equilibrium? NH4+ + H2O arrow H3O+ + NH3
- What chemical reactions occur when a strong acid or strong base is added to a buffer?
- What is the pKa for the following weak acid equilibrium? H2PO4- + H2O arrow H3O+ + HPO42-
- Which of the following bases are strong enough to deprotonate CH_3CH_2CH_2C \equiv CH \ (pK_a = 25) so that equilibrium favors the products: (e) NaH
- Which of the following bases are strong enough to deprotonate CH_3CH_2CH_2C \equiv CH \ (pK_a = 25) so that equilibrium favors the products: (c) NaNH_2
- What is the pKa for the following weak acid equilibrium? CH3COOH + H2O arrow H3O+ + CH3COO-
- Given the following pKa values, which is the weakest acid? a. HNO2 (pKa = 3.37) b. HF (pKa = 3.45) c. HIO3 (pKa = 0.77) d. HBrO (pKa = 8.69) e. HCN (pKa = 9.31)
- Which one of the following combinations will produce a buffer solution? A) 0.10 mol of NaOH and 0.10 mol of NH3. B) 0.10 mol of HCOOK and 0.10 mol of HCl. C) 0.05 mol of HCOOK and 0.05 mol of H2SO4. D) 0.20 mol of HCOOK and 0.05 mol of H2SO4. E) 0.10 mol
- What is the pKa of a weak acid if Ka = 4.0 x 10-4?
- Which of the following compounds has the highest pka? a. NH3 b. H2O c. HCl d. CH4
- Which of the following bases are strong enough to deprotonate CH_3CH_2CH_2C \equiv CH \ (pK_a = 25) so that equilibrium favors the products: (f) CH_3Li
- Which of the following would be representative of being the most acidic? a. pKa = 4 b. pKa = -3 c. Ka = 1 d. Ka = 0.0001 e. Ka = 0.00000000001
- Which of the following compounds is the strongest Bronsted acid? a. HCI b. HBr c. H2O d. H2S
- Which of the following compounds is the strongest Bronsted acid? (a) H_4P^+ (b) H_3S^+
- Which weak acid would be best to use when preparing a buffer solution with a pH of 9.10? a) An acid with K_a =1.0*10^-5 b) An acid with K_a=1.3*10^-4 c) An acid with K_a=1.6*10^-6 d) An acid with
- Which of the following acids is best suited for preparing a buffer solution with pH = 3.7 and a high buffer capacity? (a) HNO_2 (b) HClO (c) HCOOH (d) HClO_2.
- Given the pKa's of several polyprotic acids choose the strongest acid among the ions given below. H3PO4: pKa1 = 2.16, pKa2 = 7.19, pKa3 = 12.32. H3AsO4: pKa1 = 2.26, pKa2 = 6.77, pKa3 = 11.29. H2SO3: pKa1 = 1.77, pKa2 = 7.21. H2CO3: pKa1 = 6.37, pKa2
- Which of the following solutions is a weak base? a. 0.1 M HCl b. 0.1 M HC2H3O2 c. 0.1 M NaOH d. 0.1 M NH3
- Which of the following is not a strong acid? a. HCl b. HNO3 c. H2SO4 d. HC2H3O2 or CH3COOH e. All are strong acids.
- If a 7.88 \times 10^{-4} solution of a weak acid is 18.8% ionized, what is the pK_a for the acid?
- The Ka of a weak acid is 1.48 x 10-4. What is the pKa of this acid?
- The Ka of a weak acid is 1.5 x 10-5. What is the pKa of this acid?
- The Ka of a weak acid is 1.32 x 10-5. What is the pKa of this acid?
- The Ka of a weak acid is 2.5 x 10-6. What is the pKa of this acid?
- Which of the following is correctly identified? a. NaOH, weak base b. H2SO4, strong acid c. NH3, strong acid d. H2CO3, strong acid
- What does the pK_a really tell you about the strength of the acid (H) bond in the molecule?
- Which of the following is not a strong acid? HI, HCl, HF, HBr
- which of the compounds listed below would be the strongest acid? a. HNO3 b.H3N c.HNO2 d.HF e.CH3COOH
- Which of these will make a good buffer? a) H2CO3 and CO3^2- b) H2PO4^- and HPO2^2- c) H2O and NaOH d) H2O and HCl
- Which of the following compounds is the strongest acid?
- Which has the highest pK_a (a) H_2SO_4 (b) CH_3OH^+ (c) H_2O (d) CH_3OH
- What forms of glutamic acid will be present at a pH of 4.3? (pKa = 2.2, 4.3, and 9.7)
- Which salt is produced from a strong acid and a strong base? a. LiF b. NaBrO c. NH4NO3 d. NaHCO3 e. NaCl
- What are the pka values of the acids in Dulcin (C9H12N2O2)?
- What are the major species in a solution during the titration of citric acid with a strong base such as NaOH?
- The pKa of acetone, CH3COCH3, is 19.3. Which of the following bases is strong enough to deprotonate acetone? (a) KOH (pKa of H2O = 15.7) (b) Na+ -C CH (pKa of C2H2 = 25) (c) NaHCO_3 (pKa of H2CO3 = 6.4) (d) NaOCH_3(pKa of CH3OH = 15.6)
- Which of the following solutions contains the strongest acid? A. 5.00 M HCN (Ka = 6.2 x 10-10) B. 2.00 M HOCl (Ka = 3.5 x 10-8) C. 7.00 M H2C6H6O6 (Ka1 = 7.9 x 10-5, Ka2 = 1.6 x 10-12) D. 5.00 M HC2H3O2 (Ka = 1.8 x 10-5) E. 0.100 M HF (Ka = 7.2 x 10-4)
- Which of the following solutions contains the strongest acid? a. 1.00 M HF (Ka = 7.2 x 10^-4) b. 5.00 M HCN (Ka = 6.2 x 10^-10) c. 3.50 M H2C6O6 (Ka1 = 7.9 x 10^-5, Ka2 = 1.6 x 10^-12) d. 4.00 M HOCl (Ka = 3.5 x 10^-8)
- What are the pKA of HCN, hydrocyanic acid, and HF, hydrofluoric acid? Based only on those pKa values, what do you expect to be the products of the reaction below? explain. HCN + HF \to ?
- What strong acid and what strong base would react in aqueous solution to produce the salt sodium sulfate, Na2SO4?
- Which of the following molecules is a monoprotic base? (a) NH3 (b) CH3NH2 (c) (CH3)2NH (d) all of them are monoprotic
- Which of the following acids have relatively strong conjugate bases? a. CH3COOH b. HF c. H2S d. HCl
- Which is equal to the pKa of a weak acid? a) the equilibrium concentration of conjugate base b) the pKa of its conjugate acid c) the pH of a solution containing equal amounts of the weak base d) its relative molecular mass
- Which of the following substances can act as a Bronsted acid in an aqueous solution? A. CH4 B. HNO3 C. C3H8 D. H2CO3 E. NH41+ F. H2 G. HBr
- Citric acid has pK_a equals to 3.14, and tartaric acid has pK_a equals to 2.98. Which acid is stronger?
- Out of those which is buffer solutions and which is NOT buffer? HCN, NaF, HCOOH, HCOONa, HF, NaF, NaCl, KCl, NaCl, NaOH, NaBr, KBr, HBr, NaBr And out of those please list from the MOST acidic to the
- A strong acid and a weak base, respectively, are: a. HBr and HI b. HF and NaOH c. HCOOH and NH3 d. HIO and NH3 e. none of the above
- Which base has the lowest pKa? a) CH3NH2 b) C2H5NH2 c) C6H5NH2 d) NH3
- What is strong about a strong acid. What is common to all acids?
- Which three substances' conjugates cannot act as buffers, i.e. there are no weak conjugates in the compounds? NH3, C6H5COOH, H3PO4, NaHCO3, C5H5N, HBr, HF, NaOH, HClO4
- Which substance is not a soluble, strong base? a. Zn(OH)2 b. NaOH c. KOH d. LiOH e. Ba(OH)2
- Which of the following compounds is a weak base? a. NaOH. b. H_2CO_3. c. LiCl. d. NH_3. e. HC_2H_3O_2.
- Which of the following substances can act as a Bronsted acid in aqueous solution? (Select all that apply.) C_3H_8, NH_4^{1+}, HCl, H_2, H_2O, H_2CO_3, PH_3.
- Which of the following is a strong acid? (a) HNO_3 (b) HNO_2 (c) HClO (d) HClO_2.
- What are the products of an acid-base reaction?
- What is an acid? What is a base? What are the products of a neutralization reaction?
- Which of the following is the strongest acid and why? HCl HI HBr HF H_2O H_2S
- Which of the following is the strongest acid? (a) CH_3CH_2OH (b) CH_3OCH_3 (c) CH_3--NH--CH_3 (d) CH_3--C=CH (e) CH_3--CH=CH_2
- Which of the following would be the strongest acid?
- What strong acid and what strong base would react in aqueous solution to produce the salt potassium chloride, KCl?
- Which of the following pairs would make a good buffer? A. H_2C_2O_4 and HC_2O_4^-. B. HNO_3 and NO_3^-. C. NaOH and NaCl. D. HCl and NaOH.
- Which of these acids is the strongest? A). All of these acids are equally strong B). HF C). HCI D). HBr E). HI
- Which can be completely deprotonated by hydroxide? 1. phenol- pKa: 10. 2. ethanol- pKa: 16. 3. water- pKa: 15.74 4. methane-pKa: 48 5. none of the above
- What are all the strong acids and bases in chemistry?
- If pKa for weak acid HA is 5.10, what is the equilibrium constant for the following ? Report your answer as -logK A^-+H2O= HA +OH^-
- The weak acid hippuric acid is 5.0% ionized at pH 2.3. What is the pKa of the hippuric acid?
- Which of the following compounds' aqueous solution can react with NaOH? a) NH3 b) C6H12O6 c) CH3CH2OH d) CH3COOH
- Identify which of the following are acid-base reactions. Select all that apply. a. NaOH (aq) + HCIO_4 (aq) -->NaCIO_4(aq) + H_2O(l) b. HCOOH(aq) + NaOH(aq)--> HCOONa(aq) + H_2O(l) c. Fe^3+ (aq) + 3 Ag
- Which of the following is a strong acid in aqueous solution? a) HClO_2. b) HClO. c) HI. d) H_2S. e) HC_2H_3O_2.
- Which of the following is a weak base? a. NaOH b. HF c. CH3NH2 d. H2C2O4 e. Ba(OH)2
- The reaction of the strong acid HBr with the strong base KOH is: HBr(aq) + KOH(l) --> HOH(l) + KBr [aq). Compute the pH of the resulting solution if 72mL of 0.70M acid is mixed with 29mL of 0.35M ba
- If Kb for NX3 is 5.0x�10^-6 , what is the the pKa for the following reaction? HNX3+(aq)+H2O(l)<-->NX3(aq)+H3O+(aq)
- What is the pKa for the given compound?
- The reaction of the strong acid HBr with the strong base KOH\ is \\ HBr(aq)+KOH(aq)\rightarrow HOH(I)+KBr(aq) ].Compute the pH of the resulting solution if 6.0\times 101 mL of 0.55 ''M'' acid is m
- The K_a values for two weak acids are 7.2 \times 10^(-5) and 4.2 \times 10^(-10), respectively. What are their pK_a values?
- Identify the weak monoprotic acid. A. HCOOH B. H2CO3 C. KBr D. HI E. NaOH
- What is the pKa value for 2,4-dinitrophenol? Is it an acid or a base?
- Which acid would be best to use when preparing a buffer with a pH of 4.70? a. formic acid b. chloroacetic acid c. hypobromous acid d. propanoic acid