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Author Question: The complete electron configuration of vanadium, element 23, is ________. A) 1s22s22p103s23p7 ... (Read 68 times)

lak

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on: Aug 27, 2018
The complete electron configuration of vanadium, element 23, is ________.
 
  A) 1s22s22p103s23p7
  B) 1s22s22p63s23p63d34 s2
  C) 1s42s42p63s43p5
  D) 1s42s42p103s43p1
  E) 1s42s42p83s43p3

Question 2

The acid-dissociation constant of hydrocyanic acid (HCN) at 25.0 C is 4.9  10-10. What is the pH of an aqueous solution of 0.050 M sodium cyanide (NaCN)?
 
  A) 11.00
  B) 3.00
  C) 1.0  10-3
  D) 9.9  10-12
  E) 2.5  10-11
Chemistry: The Central Science ¦ Brown, LeMay, Bursten ¦ 14th Edition
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millet

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

B

Answer to Question 2

A


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