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Author Question: HZ is a weak acid. An aqueous solution of HZ is prepared by dissolving 0.020 mol of HZ in sufficient ... (Read 104 times)

j.rubin

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on: Aug 27, 2018
HZ is a weak acid. An aqueous solution of HZ is prepared by dissolving 0.020 mol of HZ in sufficient water to yield 1.0 L of solution. The pH of the solution was 4.93 at 25.0 C. The Ka of HZ is ________.
 
  A) 1.2  10-5
  B) 6.9  10-9
  C) 1.4  10-10
  D) 9.9  10-2
  E) 2.8  10-12

Question 2

When lattice points occur at the center of each face, as well as each corner of a unit cell, the cell is called ________.
 
  Fill in the blank(s) with correct word


AISCAMPING

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Reply #1 on: Aug 27, 2018
Answer to Question 1

B

Answer to Question 2

face-centered cubic


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