Question

The base-dissociation constant of ethylamine (C2H5NH2) is 6.4 ⋅ 10−4 at 25.0 °C. The [H+] in...

The base-dissociation constant of ethylamine (C2H5NH2) is 6.4 ⋅ 10−4 at 25.0 °C. The [H+] in a 1.1 ⋅ 10-2 M solution of ethylamine is ________ M.

a)2.7 ⋅ 10−3

b)3.8 ⋅ 10−12

c)11.37

d)4.3 ⋅ 10−12

e) 2.4 ⋅ 10−3

0 0
Add a comment Improve this question Transcribed image text
✔ Recommended Answer
Answer #1

jollous wlu CHa CH NH2 H20 C 4CO cla) Col Cod AS SV, NOu 6-4 XID-4 7.04 xl0 27xl0 n O 0027 2.7xt03 3. & x1012 CuT S4

Add a comment
Know the answer?
Add Answer to:
The base-dissociation constant of ethylamine (C2H5NH2) is 6.4 ⋅ 10−4 at 25.0 °C. The [H+] in...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Similar Homework Help Questions
  • The base-dissociation constant of ethylamine (C_2H_5 NH_2) is 6.4 * 10^-4 at 25.0 degree C. In...

    The base-dissociation constant of ethylamine (C_2H_5 NH_2) is 6.4 * 10^-4 at 25.0 degree C. In a 1.6 * 10^-2 M solution of ethylamine, what is [H^+] (M)? Acetic acid is a weak acid that dissociates into the acetate ion and a

  • 8) The base-ionization constant of ethylamine (C2H-NH2) is 6.4 x 10-4 at 25.0 °C. The [H*]...

    8) The base-ionization constant of ethylamine (C2H-NH2) is 6.4 x 10-4 at 25.0 °C. The [H*] in a 1.6 x 10-2 M solution of ethylamine is M. 9) Z is a weak base. An 0.350 M aqueous solution of NaZ is prepared. The pH of the solution was 8.93 at 25.0°C. The Ky of Z" is: 10) At 25 C, the pH of a 0.15 M aqueous solution of Csz (the cesium salt of HZ) is 10.70. What is the...

  • Calculate the Ka (aq., 25 °C) of a 0.250 M weak acid whose pH is 3.86....

    Calculate the Ka (aq., 25 °C) of a 0.250 M weak acid whose pH is 3.86. The base-ionization constant of ethylamine (C2H5NH2) is 6.4 x 10-4 at 25.0 °C. The [H+) in a 1.6 x 10-2 M solution of ethylamine is M.

  • - 2.80 Ethylamine, C2H5NH2, is a monoprotic base with pKb = 3.37 at 25 °C. For...

    - 2.80 Ethylamine, C2H5NH2, is a monoprotic base with pKb = 3.37 at 25 °C. For 0.147 mol L-' C2H5NH2(aq) at 25 °C, calculate (a) the percent ionization of C2H5NH2; and (b) the pH on pH of the solution. (a) Percent ionization = (Enter a number accurate to 2 significant figures.) (b) pH =. (Enter a number accurate to 2 decimal places.) 5.6 Te0-47

  • Hey guys, I am having a lot of trouble with my homework. Could you please help?...

    Hey guys, I am having a lot of trouble with my homework. Could you please help? I thumbs up anyone who gives a thorough explanation and shows the work! I really need to understand these concepts! Thank you very much! 1) Z- is a weak base. An 0.350 M aqueous solution of NaZ is prepared. The pH of the solution was 8.93 at 25.0°C. The Kb of Z- is: 2) The base-ionization constant of ethylamine (C2H5NH2) is 6.4 x 10-4...

  • Hey guys, I am having a lot of trouble with my homework. Could you please help?...

    Hey guys, I am having a lot of trouble with my homework. Could you please help? I thumbs up anyone who gives a thorough explanation and shows the work! I really need to understand these concepts! Thanks guys! 1) Z- is a weak base. An 0.350 M aqueous solution of NaZ is prepared. The pH of the solution was 8.93 at 25.0°C. The Kb of Z- is: 2) The base-ionization constant of ethylamine (C2H5NH2) is 6.4 x 10-4 at 25.0...

  • Hey guys, I am having a lot of trouble with my homework. Could you please help?...

    Hey guys, I am having a lot of trouble with my homework. Could you please help? I thumbs up anyone who gives a thorough explanation and shows the work! I really need to understand these concepts! Thank you! 1) Z- is a weak base. An 0.350 M aqueous solution of NaZ is prepared. The pH of the solution was 8.93 at 25.0°C. The Kb of Z- is: 2) The base-ionization constant of ethylamine (C2H5NH2) is 6.4 x 10-4 at 25.0...

  • a. The hydroxide ion concentration, [OH-], of an aqueous solution of 0.331 M ethylamine (a weak...

    a. The hydroxide ion concentration, [OH-], of an aqueous solution of 0.331 M ethylamine (a weak base with the formula C2H5NH2) , Kb = 4.3×10-4, is: [OH-] = ___________ b. The hydronium ion concentration of an aqueous solution of 0.331 M codeine (a weak base with the formula C18H21O3N) is ... [H3O+] = __________

  • 6.) Determine the pH during the titration of 34.9 mL of 0.220 M ethylamine (C2H5NH2, Kb...

    6.) Determine the pH during the titration of 34.9 mL of 0.220 M ethylamine (C2H5NH2, Kb = 4.3×10-4) by 0.220 M HNO3 at the following points. (Assume the titration is done at 25 °C.) Note that state symbols are not shown for species in this problem. (a) Before the addition of any HNO3 (b) After the addition of 12.7 mL of HNO3 (c) At the titration midpoint (d) At the equivalence point (e) After adding 52.0 mL of HNO3

  • If the dissociation constant of a weak acid is 6.4 x 10, at what ratio should...

    If the dissociation constant of a weak acid is 6.4 x 10, at what ratio should you adjust the concentration of the weak acid and its conjugate base in ord a) 0.0500 M weak acid with 0.100 M conjugate base b) 0.100 M weak acid with 0.0100 M conjugate base c)0.500 M weak acid with 0.500 M conjugate base d) 0.0500 M weak acid with 0.500 M conjugate base e) 0 200 M weak acid with 0.100 M conjugate base...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT