In water, HCN is a weak acid with pKa = 9.6.
a. Calculate the the Ka and the [H+] in a 0.15 M solution of HCN.
b. In a closed system, these equilibria are established:
HCN (g) s HCN (aq)
HCN (aq) s H + (aq) + CN - (aq)
1) Calculate Kp for the equilibrium between HCN (g) and HCN (aq) at 298 K.
? Gf° kJ. mol-1
HCN (g) 124.7
HCN (aq) 119.7
2) If the total cyanide concentration in solution (i. e. [CN-] + [HCN]) is 0.10M, calculate the partial pressure of HCN (g) in this system at pH = 7.
Answers (1)
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “In water, HCN is a weak acid with pKa = 9.6. a. Calculate the the Ka and the [H+] in a 0.15 M solution of HCN. b. In a closed system, these ...” in 📗 Chemistry if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers
You Might be Interested in
A. What was your relative pH reading for vinegar? Relative pH of baking soda? B. How many times greater are the H + ions in vinegar than baking soda? (give the answer in exponential form)
Answers (1)
If you could count two atoms every second how long would it take you to count a mole of atoms
Answers (1)
Why will clay weather the fastest out of several types of soil?
Answers (1)
An ion of which element is lager then its atom A - Al B - Br C - Ca D - Sr
Answers (1)
How does the enengry of a eletron change when the eletron moves closer to the nuclues
Answers (1)
New Questions in Chemistry
What type of chemical process is used to create perfume?
Answers (1)
Which of the following is a polyatomic ion? O A. HCI O B. Na O C. PO, O D. 52
Answers (2)
What are the cations and anions for V2 (CO3) 3
Answers (1)
If you were asked to convert 4.2 x 1022 atoms of aluminum to moles, which of the following should you use for the conversion?
Answers (1)
Carbonic acid (H2CO3) does not dissortate 100 percent in water. What type of substance is it? weak acid Strong base strong acid weak base
Answers (1)