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Identifying Acids and Bases quiz #7

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Terms in this set (39)

  • Vomiting will cause which type of acid-base disturbance?
    Vomiting causes metabolic alkalosis.
  • What is the strongest common acid?
    Among common acids, HI or HClO4 is the strongest.
  • Is ammonia acidic or alkaline?
    Ammonia is alkaline (basic).
  • Which characteristic best identifies an Arrhenius base?
    An Arrhenius base produces OH- ions in water.
  • Which term describes a substance that increases the concentration of hydroxide ions in solution?
    A base increases the concentration of hydroxide ions.
  • Which compound is most likely to act as a Brønsted-Lowry acid among HCN, CCl4, and Mg(OH)+?
    HCN would most likely act as a Brønsted-Lowry acid.
  • What is the classification of a solution of NaOH with a pH of 8.3?
    It is a basic solution.
  • Which describes what will happen to the H+ when these reactants form products?
    H+ will be transferred from the acid to the base.
  • If HI behaves as an acid with CH3OH, what is the product?
    HI donates a proton to CH3OH, forming CH3OH2+ and I-.
  • What are the conjugate acids of the bases NH3, OH-, CH3COO-, and CO3^2-?
    NH4+, H2O, CH3COOH, HCO3-.
  • Which is the stronger acid in the following pair? Select the single best answer.
    The acid that ionizes more completely in water is the stronger acid.
  • A solution of water has a [OH-] = 2.5 x 10^-7 M. Is the solution acidic or basic?
    The solution is acidic because [OH-] < 1 x 10^-7 M.
  • How is an aqueous acidic solution characterized in terms of pH and ion concentration?
    An acidic solution has a pH less than 7 and a higher concentration of H+ than OH-.
  • Which Brønsted-Lowry acid is not considered to be a strong acid in water?
    HF is not considered a strong acid in water.
  • A compound is described as a strong acid. What does this term mean? (Select all that apply.)
    A strong acid completely ionizes in water and is a strong electrolyte.
  • A compound is described as a strong acid. What does this term mean? Select all that apply.
    A strong acid completely ionizes in water and is a strong electrolyte.
  • How many of the following are weak acids? HNO2, HF, HNO3, H2PO4-
    HNO2, HF, and H2PO4- are weak acids; HNO3 is a strong acid.
  • What type of salt forms a basic solution when dissolved in water?
    A salt containing the conjugate base of a weak acid, such as NaCN, will form a basic solution.
  • An unknown acid: what property would you test to identify it?
    Test if it releases H+ ions or turns blue litmus paper red.
  • Which substance is a base? HCOOH, RbOH, H2CO3, NaNO3
    RbOH is a base.
  • Which would most likely be the pH of a highly-corrosive acid?
    A highly-corrosive acid would have a pH close to 0.
  • Which substances are most likely acids? Check all that apply: CH4, HI, NH3, HNO3, NaCl
    HI and HNO3 are acids.
  • What is the difference between an acid and a base?
    Acids release H+ ions in water; bases release OH- ions.
  • Which substances are bases? Check all that apply: NaOH, KOH, H3BO3, NaCl, Ca(OH)2, Fe2O3
    NaOH, KOH, and Ca(OH)2 are bases.
  • A solution has a pH of 2. Which best describes the solution?
    The solution is strongly acidic.
  • What is an acid? An acid _____.
    An acid donates H+ ions in water.
  • Which statement below best summarizes the difference between strong acids and weak acids?
    Strong acids completely ionize in water; weak acids only partially ionize.
  • The reaction below demonstrates which characteristic of a base?
    The reaction shows a base accepting a proton.
  • Which reaction yields a salt that has a pH < 7?
    A reaction between a strong acid and a weak base yields a salt with pH < 7.
  • Which of the properties listed below is not characteristic of an acid?
    Acids do not turn red litmus paper blue.
  • What is the conjugate acid in this reaction? HC2H3O2(aq) + H2O(l) → H3O+ + C2H3O2-(aq)
    H3O+ is the conjugate acid.
  • What is a common acid found in daily life?
    Vinegar (acetic acid, CH3COOH) is a common acid.
  • How do bases taste?
    Bases taste bitter.
  • Which salt has a pH < 7? KBr, HCOOK, CaSO4, NH4NO3
    NH4NO3 has a pH < 7.
  • Adding a base tends to __________ of a solution.
    Adding a base tends to increase the pH of a solution.
  • Fill in the missing chemical formulae in the tables below: acid, conjugate base, base, conjugate acid.
    Acid: HCl; Conjugate base: Cl-. Base: NH3; Conjugate acid: NH4+.
  • An acid that can donate only one hydrogen ion is called a _____ acid.
    An acid that can donate only one hydrogen ion is called a monoprotic acid.
  • HBrO conjugate base
    The conjugate base of HBrO is BrO-.
  • Is HBrO3 a strong acid?
    HBrO3 is a strong acid.