3. Carbonic acid, H2CO3, can be found in a wide Calculate the hydronium -ion concentration of a concentration of CO32-? Ka' =4.3 x 10 -7., Ka² = (Ans: (a) 1.6 x 10 -5. (b) [CO3²-]=4.8 x 10 -11

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Chapter13: Acids And Bases
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Problem 188IP: Isocyanic acid (HNCO) can be prepared by heating sodium cyanate in the presence of solid oxalic acid...
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3. Carbonic acid, H2CO3, can be found in a wide variety of body fluids (from dissolved CO2). a.
Calculate the hydronium -ion concentration of a 6.00 x 10-4 M H2CO3 solution. b. What is the
concentration of CO32-? Ka' =4.3 x 10 -7., Ka² = 4.8 x 10 -11.
(Ans: (a) 1.6 x 10 -5. (b) [CO3²-]=4.8 x 10 -11.
4. A formic acid (HCOOH) solution of 0.4M freezes at -0.758°C. Calculate the Ka of the acid at
that temperature? (Kfof water = 1.86°C/m (Assume that molarity is equal to molality).
Transcribed Image Text:3. Carbonic acid, H2CO3, can be found in a wide variety of body fluids (from dissolved CO2). a. Calculate the hydronium -ion concentration of a 6.00 x 10-4 M H2CO3 solution. b. What is the concentration of CO32-? Ka' =4.3 x 10 -7., Ka² = 4.8 x 10 -11. (Ans: (a) 1.6 x 10 -5. (b) [CO3²-]=4.8 x 10 -11. 4. A formic acid (HCOOH) solution of 0.4M freezes at -0.758°C. Calculate the Ka of the acid at that temperature? (Kfof water = 1.86°C/m (Assume that molarity is equal to molality).
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