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Author Question: Calculate the pH of a solution prepared by dissolving 0.270 mol of formic acid (HCO2H) and 0.260 mol ... (Read 112 times)

NClaborn

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on: Aug 27, 2018
Calculate the pH of a solution prepared by dissolving 0.270 mol of formic acid (HCO2H) and 0.260 mol of sodium formate (NaCO2H) in water sufficient to yield 1.00 L of solution. The Ka of formic acid is 1.77  10-4.
 
  A) 2.099
  B) 10.264
  C) 3.736
  D) 2.307
  E) 3.952

Question 2

In which of the following atoms is the 3s orbital closest to the nucleus?
 
  A) S
  B) Po
  C) Te
  D) Se
  E) P


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catron30

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

C

Answer to Question 2

B


NClaborn

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Reply 2 on: Aug 27, 2018
Gracias!

vickyvicksss

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Reply 3 on: Yesterday
:D TYSM

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