Lab: Measuring pH — Unit test Answers
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A substance with a high [H+ ] would likely have which additional characteristics?
A
a high [OH– ] and a high pOHB
a low [OH– ] and a high pOHC
a high [OH– ] and a low pOHD
a low [OH– ] and a low pOH22
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What is the Bronsted-Lowry definition of a base?
A
a compound that donates protonsB
a compound that accepts protonsC
a substance that increases hydroxide ion concentrationD
a substance that increases hydronium ion concentration23
The pH of a solution is 2.0. Which statement is correct?Useful formulas include , , , and .
A
The pOH of the solution is 12.0.B
The concentration of OH– ions is 1.0 10–2 M.
C
The concentration of ions is 100.0 M.
D
The pOH of the solution is 16.0.24
Which best describes the definition of Lewis acids and bases?
A
a general definition based on electron structureB
a general definition based on hydrogen ion concentrationC
a specific definition based on a compound’s ability to accept protonsD
a specific definition based on a compound’s ability to donate protons25
Which statement correctly describes the Ka of a weak acid?
A
The Ka is large, and the equilibrium favors products.B
The Ka is large, and the equilibrium favors reactants.C
The Ka is small, and the equilibrium favors products.D
The Ka is small, and the equilibrium favors reactants.Did you find these answers helpful?
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