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by BlastRoom
Classify acid and base strength using common examples, ionization evidence, concentration, conductivity, and pH.
#chemistry
24 questions
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Which acid is usually treated as a strong acid in water?
A teacher asks for a strong base from the common solubility-table list. Which choice fits?
Which formula names a strong acid rather than a weak acid?
Which pair contains two substances normally classified as strong in water?
A bottle label says “perchloric acid.” How should the acid be classified?
Which hydroxide is commonly listed as a strong base in a first-year chemistry course?
A 0.20 M acid sample contains mostly HA molecules and only a few H3O+ and A- ions. What does that evidence show?
Two bases have equal molarity. Base X exists mostly as B molecules; base Y exists mostly as M+ and OH- ions. Which is stronger?
An acid is 97% ionized in water. Which description best fits the acid?
A beaker of 0.10 M ammonia has many NH3 particles and relatively few NH4+ and OH- ions. What is ammonia acting as?
A particle diagram for HCl(aq) shows almost no HCl molecules and many H3O+ and Cl- ions. Which claim matches the diagram?
A 0.50 M acid solution is only 1.3% ionized. Which statement is best supported?
A lab bottle contains 12 M acetic acid, HC2H3O2. Which description is most accurate?
A student dilutes HCl from 6.0 M to 0.010 M. What changes and what stays the same?
Which sample is dilute but strong?
A solution has a high molarity but only a small fraction of its solute particles form ions. Which phrase best describes it?
Which statement correctly separates acid strength from concentration?
A chemist compares 0.10 M NaOH and 8.0 M NH3. Which comparison is correct?
Equal-concentration solutions of HCl and HC2H3O2 are tested. Which should have the lower pH?
Two 0.10 M bases are compared. NaOH has pH 13, while NH3 has pH about 11. Which explanation is best?
At the same concentration, an acid solution lights a conductivity bulb brightly. Another acid solution lights it dimly. What is the best conclusion?
Four 0.010 M acids are tested. Which one should have the greatest electrical conductivity?
A 0.10 M unknown acid has pH 1.00. Which identity is most consistent with that pH?
Two 0.20 M acids are compared: solution A has pH 0.70 and solution B has pH 2.40. Which statement is most reasonable?
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Calculating pH and pOH
24 questions
