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Author Question: Calculate the pH of a solution prepared by dissolving 0.250 mol of benzoic acid (C7H5O2H) and 0.150 ... (Read 169 times)

SGallaher96

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Calculate the pH of a solution prepared by dissolving 0.250 mol of benzoic acid (C7H5O2H) and 0.150 mol of sodium benzoate (NaC7H5O2 ) in water sufficient to yield 1.00 L of solution. The Ka of benzoic acid is 6.50  10-5.
 
  A) 4.409
  B) 3.965
  C) 10.035
  D) 9.591
  E) 5.190

Question 2

The oxidation numbers of nitrogen in the nitride ion, hydrazine, ammonium cation, and nitrate ion are ________, ________, ________, and ________, respectively.
 
  A) -3, -2, -3, +5
  B) +3, -2, -3, +5
  C) +3, -2, +1, +3
  D) -3, +2, +1, +5
  E) -3, +2, -3, +3

Question 3

Of the following substances, only ________ has London dispersion forces as its only intermolecular force.
 
  A) CCl4
  B) SnF3
  C) CH3OH
  D) HI
  E) H2O


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samiel-sayed

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SGallaher96

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Reply 2 on: Aug 27, 2018
Excellent


anyusername12131

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Reply 3 on: Yesterday
Wow, this really help

 

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