The central atom in the O3 molecule has ________ nonbonded ...

[Caiter2013]

The central atom in the O3 molecule has ________ nonbonded electron pair(s) and ________ bonded electron pair(s) in its valence shell.
 
  A) 6, 2
  B) 1, 3
  C) 2, 2
  D) 3, 1
  E) 3, 2

Question 2

A buffer solution with a pH of 4.40 is prepared with 0.78 M Na C2H3O2 and ________ M HC2H3O2. The Ka of HC2H3O2 is 1.8  10-5.
 
  A) 1.7
  B) 3.5
  C) 4.1  104
  D) 0.35
  E) 0.86

[yasmin]

Answer to Question 1

B

Answer to Question 2

A

[Caiter2013]

Excellent

[ricroger]

Wow, this really help