Concept explainers
(a)
Interpretation:
If the 4-methylphenol will dissolve easily in aqueous NaOH solution than the pure water should be determined.
Concept Introduction:
The acid is a substance that gives
(b)
Interpretation:
If the 4-methylphenol will dissolve easily in aqueous NaHCO3 solution than the pure water should be determined.
Concept Introduction:
The acid is a substance that gives
(c)
Interpretation:
If the 4-methylphenol will dissolve easily in aqueous NH3 solution than the pure water should be determined.
Concept Introduction:
The acid is a substance that gives
Want to see the full answer?
Check out a sample textbook solutionChapter 8 Solutions
Introduction to General, Organic and Biochemistry
- The disinfectant phenol, C₆H₅OH, has a pKₐ of 10.0 in wa-ter, but 14.4 in methanol. (a) Why are the values different? (b) Is methanol is a stronger or weaker base than water? (c) Write the dissociation reaction of phenol in methanol. (d) Write an expres-sion for the autoionization constant of methanol.arrow_forwardPredict which phase each of the following compounds would interact when dissolved in A) dichloromethane and aqueous HCI; and B) dichloromethane and aqueous NaOH. CH3 -N ОН N CH3 H3C `N' 'N' HO CH3 CH3 Acetylsalicylic acid (Aspirin) Acetaminophen Caffeinearrow_forwardNaHCO3 can deprotonate benzoic acid but cannot deprotonate phenol. On the other hand, NaOH can deprotonate both benzoic acid and phenol. Given this information, rank the molecules numbered I to V in order of decreasing acidity. COH cOH он H,0 H,CO, IV CH3 II I II (A) V > II >I > III > IV (В) II > 1 > V > III IV (C) II > V >I > IV > IIarrow_forward
- 5. List the following compounds in order from strongest acid to weakest acid: CH4 CH;COOH CH;OH CHCI»OH 6. Which of the following are likely to act as Lewis acids and which as Lewis bases? Which might act both ways? (a) CH3CH2OH (d) (СH3)3B (b) (CHҙ)2NH (e) H3C+ (c) MgBr2 (f) (CH3)3Parrow_forward18). The formulas and the structures of two acids are shown below. Which acid is a stronger acid? If the acid strength of the two acids is equal, say so. Cl2CHCOOH CH3COOH но но CI-C-C-OH н-с-с-он ČI Ką = 0.0324 Ką = 1.82 x 10-5 %3D a. Cl¿CHCOOH is a stronger acid than CH;COOH. b. CH;COOH is a stronger acid than CI½CHCOOH c. The two have equal acid strength. d. none of the abovearrow_forwarddentify the acid-base conjugate pairs in each of the following reactions: (a) CH3COO HCN CH3COOH CN (b) HCO HCO H2CO3 CO (c) H2PO NH3 HPO NH (d) HClO CH3NH2 CH3NH ClO (e) CO H2O HCO OHarrow_forward
- Ammonia can react as an acid or a base. a) What is the conjugate acid of ammonia? b) What is the conjugate base of ammonia? c) arist dit ons servbed as Complete the following acid-base reaction in which NH3(e) acts as both an acid and a base: OcH 6 HOONH3() + NH3() = OOH (d FOZH (s *АНИ (1 sqz ions to biosqu adtaviðarrow_forwardPhenol, C6H5OH, has a Ka = 1.3x 10 -10 (a) Write out the Ka reaction for phenol (b) Calculate Kb for phenols conjugate base (c) Is phenol a stronger or weaker acid than water?arrow_forwardConsider two acids: HCO2H (formic acid, pKa = 3.8) and pivalic acid [(CH3)3CCO,H, pK = 5.0]. (a) Which acid has the larger K? (b) Which acid is the stronger acid? (c) Which acid forms the stronger conjugate base? (d) When each acid is dissolved in water, for which acid does the equilibrium lie further to the right? %3D The pKa values in Table 2.1 span a large range (-7 to 50). The pK, scale is logarithmic. small difference in pK, translates into a large numerical difference, For example, the diffe between the pK, of NH3 (38) and CH2=CH, (44) is six pKa units. This means that NH, is one million times more acidic than CH,=CH,.arrow_forward
- Calculate the pOH of a solution of methylamine and lye. Initially, [CH3NH2] = 1M and [NaOH] = 0.02M. CH3NH2(aq) + H2O(l) ↔ CH3NH3+(aq) + OH-(aq) Kb = 4.38x10-4 NaOH(aq) → Na+(aq) + OH-(aq) Strong base a. 1.70 b. 1.39 c. 1.68 d. 4.12 e. 2.33arrow_forwardBe sure to answer all parts. Which indicators that would be su ble for each of the following titrations: (a) CH;NH, with HBr thymol blue bromophenol blue methyl orange methyl red chlorophenol blue bromothymol blue O cresol red O phenolphthalein (b) HNO, with NaOH thymol blue bromophenol blue methyl orange methyl red chlorophenol blue bromothymol blue cresol red phenolphthalein (c) HNO, with KOH thymol blue O bromopbenol blue methyl orange methyl red chlorophenel bluearrow_forwardWill carbon dioxide be evolved as a gas when sodium bicarbonate is added to an aqueous solution of each compound? Explain. (a) Sulfuric Acid (b) Ethanol, C2H5OH (c) Ammonium Chloride, NH4Clarrow_forward
- Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning