The following solutions are all 0.10 M in weak acid. Considering their Ka values, which solution will have the lowest pH? HCN, Ka = 4.9 x 10^-10 HClO, Ka = 1.1 x 10^-2 HCHO2, Ka = 1.8 x 10^-4 HF, Ka = 3.5 x 10^-4
Added by Gabriel T.
Close
Step 1
The more H+ ions, the lower the pH. In the case of weak acids, the Ka value represents the acid dissociation constant, which is a measure of how much the acid dissociates into its ions in solution. The higher the Ka value, the more the acid dissociates, and the Show more…
Show all steps
Your feedback will help us improve your experience
Hitendra Singh and 84 other Chemistry 101 educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
A 1.1 x 10^-2 M aqueous solution of Ca(OH)2 at 25.0 °C has a pH of ________. 2.2 x 10^-2 12.34 1.66 12.04 4.5 x 10^-13 In which of the following aqueous solutions does the weak acid exhibit the lowest percentage ionization? 0.01 M H2CO3 (Ka = 4.5 x 10^-7) 0.01 M HCHO2 (Ka = 1.8 x 10^-4) 0.01 M HNO2 (Ka = 4.0 x 10^-4) 0.01 M HOCl (Ka = 3.5 x 10^-8) 0.01 M HCN (Ka = 6.2 x 10^-10)
Adi S.
In which of the following aqueous solutions does the weak acid exhibit the lowest percentage ionization? 0.01 M H2CO3 (Ka = 4.5 Ă— 10^-7) 0.01 M HOCl (Ka = 3.5 Ă— 10^-8) 0.01 M HCHO2 (Ka = 1.8 Ă— 10^-4) 0.01 M HNO2 (Ka = 4.0 Ă— 10^-4) 0.01 M HCN (Ka = 6.2 Ă— 10^-10)
Chittaranjan S.
A 0.115 M solution of a weak acid (HA) has a pH of 3.29. Calculate the acid ionization constant (Ka) for the acid.
Recommended Textbooks
Chemistry: Structure and Properties
Chemistry The Central Science
Chemistry
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD