04:22What Makes Something Acidic? | Acids, Bases & Alkali's | Chemistry | FuseSchoolFuseSchool - Global Education436views
Multiple ChoiceWhich of the following compound(s) cannot be classified as an acid?A. H2SB. HCNC. H2D. C2H6E. All are acids1180views2rank5commentsHas a video solution.
Multiple ChoiceWhich is the weakest acid from the following?1389views5rank2commentsHas a video solution.
Multiple ChoiceWhich of the following acids would be classified as the strongest?1612views3rank5commentsHas a video solution.
Multiple ChoiceRank the following oxyacids in terms of increasing acidity. a) HClO3b) HBrO4c) HBrO3d) HClO41558views3rank1commentsHas a video solution.
Multiple ChoiceClassify each of the following as a strong acid, weak acid, strong base or weak base.1239views2rank3commentsHas a video solution.
Multiple ChoiceClassify each of the following as a strong acid, weak acid, Strong base, or weak base. 708views1rank2commentsHas a video solution.
Multiple ChoiceClassify each of the following as a strong acid, weak acid, strong base or weak base.787views4rank5commentsHas a video solution.
Multiple ChoiceWhich of the following is true in regards to HNO3? a) It has a bitter taste. b) It produces H+ ions in water.c) It exists as only molecules when dissolved in H2O. d) It decreases the acidity of the solution.275views4rankHas a video solution.
Textbook QuestionConsider the conjugate bases, 1X-, Y-, Z-2 in Problem 2. If you mix equal concentrations of reactants and products, which of the following reactions will proceed to the left? (LO 16.3) (a) HX + Y- HY + X- (b) HX + Z- HZ + X- (c) HY + X- HX + Y- (d) HZ + Y- HY + Z-246viewsHas a video solution.
Textbook QuestionThe following diagrams represent aqueous solutions of three acids, HX, HY, and HZ. The water molecules have been omitted for clarity, and the hydrated proton is represented as H+ rather than H3O+. (a) Which of the acids is a strong acid? Explain. 516viewsHas a video solution.
Textbook QuestionEach of the three molecules shown here contains an OH group, but one molecule acts as a base, one as an acid, and the third is neither acid nor base. (c) Which one is neither acidic nor basic? 585viewsHas a video solution.
Textbook QuestionPhenylephrine, an organic substance with molecular formula C9H13NO2, is used as a nasal decongenstant in over-thecounter medications. The molecular structure of phenylephrine is shown below using the usual shortcut organic structure. (a) Would you expect a solution of phenylephrine to be acidic, neutral, or basic? 813viewsHas a video solution.
Textbook QuestionAmmonia 1NH32 has base dissociation constant 1Kb2 of 1.8 * 10-5. What is the concentration of an aqueous ammonia solution that has a pH of 11.68? (LO 16.11) (a) 0.28 M (b) 3.6 M (c) 9.0 * 10-3 M (d) 1.3 M612viewsHas a video solution.
Textbook QuestionWhich of the following statements is false? (a) An Arrhenius base increases the concentration of OH- in water. (b) A Brønsted-Lowry base is a proton acceptor. (c) Water can act as a Brønsted–Lowry acid. (d) Water can act as a Brønsted–Lowry base. (e) Any compound that contains an –OH group acts as a Brønsted-Lowry base.454viewsHas a video solution.
Textbook QuestionPredict the products of the following acid–base reactions, and predict whether the equilibrium lies to the left or to the right of the reaction arrow: (c) NO2-1aq2 + H2O1l2 Δ914viewsHas a video solution.
Textbook QuestionPredict the products of the following acid–base reactions, and predict whether the equilibrium lies to the left or to the right of the reaction arrow: (c) HCO3-1aq2 + F-1aq2 Δ874viewsHas a video solution.
Textbook QuestionLabel each of the following substances as an acid, base, salt, or none of the above. Indicate whether the substance exists in aqueous solution entirely in molecular form, entirely as ions, or as a mixture of molecules and ions. (d) Ba1OH22.878viewsHas a video solution.
Textbook QuestionThe pH of a solution of NH3 and NH4Br is 8.90. What is the molarity of NH4Br if the molarity of NH3 is 0.016 M?792viewsHas a video solution.
Textbook QuestionIdentify the weakest acid in each of the following sets. Explain your reasoning. (a) H2SO3, HClO3, HClO41274views1rankHas a video solution.
Textbook QuestionLook up the values of Ka in Appendix C for C6H5OH, HNO3, CH3CO2H, and HOCl, and arrange these acids in order of: (b) Decreasing percent dissociation.553viewsHas a video solution.
Textbook QuestionIn nonaqueous solvents, it is possible to react HF to create H2F+. Which of these statements follows from this observation? (a) HF can act like a strong acid in nonaqueous solvents, (b) HF can act like a base in nonaqueous solvents, (c) HF is thermodynamically unstable, (d) There is an acid in the nonaqueous medium that is a stronger acid than HF.533viewsHas a video solution.
Textbook QuestionCalculate the concentrations of all species present and the pH in 0.10 M solutions of the following substances. See Appendix C for values of equilibrium constants. (b) Sodium acetate, Na1CH3CO22662viewsHas a video solution.
Textbook QuestionThe AIDS drug zalcitabine (also known as ddC) is a weak base with a pKb of 9.8. What percentage of the base is protonated in an aqueous zalcitabine solution containing 565 mg>L?451viewsHas a video solution.
Textbook QuestionCalculate the pH and the concentrations of all species present (H3O+ , F-, HF, Cl-, and OH-) in a solution that contains 0.10 M HF 1Ka = 3.5 * 10-42 and 0.10 M HCl.627viewsHas a video solution.
Textbook QuestionIn the case of very weak acids, 3H3O+ 4 from the dissociation of water is significant compared with 3H3O+ 4 from the dissociation of the weak acid. The sugar substitute saccharin 1C7H5NO3S2, for example, is a very weak acid having Ka = 2.1 * 10-12 and a solubility in water of 348 mg/100 mL. Calculate 3H3O+ 4 in a saturated solution of saccharin. (Hint: Equilibrium equations for the dissociation of saccharin and water must be solved simultaneously.)391viewsHas a video solution.
Textbook QuestionA 1.000 L sample of HF gas at 20.0 °C and 0.601 atm pressure was dissolved in enough water to make 50.0 mL of hydrofluoric acid. (b) To what volume must you dilute the solution to triple the percent dissociation?321viewsHas a video solution.
Open QuestionWhich of these substances contributes to soap's slippery texture: an acid, a base, carbonate, or water?132viewsHas a video solution.
Open QuestionAccording to the Arrhenius concept, if HNO3 were dissolved in water, it would act as110viewsHas a video solution.