t Score: 395/1000 02 01- Resources Cx Give Up? MIN SEC f 10> If the Kb...

Question

Question

t Score: 395/1000 02 01- Resources Cx Give Up? MIN SEC f 10> If the Kb of a weak base is 7.2 × 10-6, what is the pH of a 0.11

Answer 1

Answer #1

, First we write down the initial and equilibrium concentration of base and ions.

Then the second step is tp write down the equation of Kb and substitute value of Kb in it

Step 3 - solve the Kb equation to obtain concentration of OH^- ions

Step4 - calculate POH from the concentration of OH^- ions

and from that we calculate PH of base

and same is shown below step by step in image

0 equal. bynum (o.11-x)M o-li-u 7.2 XID 2. ,4..nul kb.S 24 7-2×10 0.11 M 6 0 192 X1OM POH (oH

Answer 2

Similar Homework Help Questions

Assignment Score: 681/3200 Resources Hint Question 17 of 32 > What is the pH of a...

Assignment Score: 681/3200 Resources Hint Question 17 of 32 > What is the pH of a 75.0 ml solution that is 0.041 Min weak base and 0.057 M in the conjugate weak acid (K. = 7.2 x 10-8)? pH =
= 3 of 3 Questions Assignment Score: 33.3% Resources CX Give Up? Hint Check Answer 50%...

= 3 of 3 Questions Assignment Score: 33.3% Resources CX Give Up? Hint Check Answer 50% < Question 3 of 3 > Attempt 2 1 Question 1 of 0 Attempts In Progress 0% 2 Question O of Attempts A buffered solution containing dissolved aniline, CH NH,, and aniline hydrochloride, CH_NH, CI, has a pH of 5.74. A. Determine the concentration of CH NHin the solution if the concentration of CH_NH, is 0.230 M. The pKb of aniline is 9.13 50%...
Assignment Score: 29.5% Resources Cx Give Up? Hint Check Answer Question 4 of 10 > Attempt...

Assignment Score: 29.5% Resources Cx Give Up? Hint Check Answer Question 4 of 10 > Attempt 2 A 23.63 mL volume of 0.0956 M NaOH was used to titrate 25.0 mL of a strong monoprotic acid to the equivalence point. What was the pH at the equivalence point? O O O It cannot be determined without completing the titration. 7 greater than 7 o less than 7 About us Careers Privacy policy terms of use

ignment Score: 490/1000 Resources Lt Give Up? Feedback Try Again Question 6 of 10 > Attempt...

ignment Score: 490/1000 Resources Lt Give Up? Feedback Try Again Question 6 of 10 > Attempt 2 You need to prepare 100.0 mL of a pH 4.00 buffer solution using 0.100 M benzoic acid (pK= 4.20) and 0.200 M sodium benzoate. buffer? How many milliliters of each solution should be mixed to prepare this buffer? benzoic acid: 65.98 sodium benzoate: 34.02 (hp) BANGL OLUFSEN
o Assignment Score! 1090/2000 Resources Ex Give Up? Feedba < Question 12 of 20 > Calculate...

o Assignment Score! 1090/2000 Resources Ex Give Up? Feedba < Question 12 of 20 > Calculate the hydroxide ion concentration, OH), for a solution with a pH of 7.88. Tess [OH-] = 6.12 6.12 DO 100 0/100 0/100 about us careers privacy policy terms of use contact us help
Hint Check Answer Resources ssignment Score: 597/1700 Question 4 of 17 > If the Ks of...

Hint Check Answer Resources ssignment Score: 597/1700 Question 4 of 17 > If the Ks of a weak base is 6.1 x 10-what is the pH of a 0.17 M solution of this base? pH

Assignment Score: 19.1% Resources Ex Give Up? < Question 17 of 23 Hint Check Answer >...

Assignment Score: 19.1% Resources Ex Give Up? < Question 17 of 23 Hint Check Answer > Nicl, is a strong electrolyte Determine the concentration of each of the individual ions in a 0.650 M NiCI, solution [Ni²+] = [Cl] =
Ut waves HW Chapter 11 ignment Score: 84.4% Resources Give Up? Feedback tion 19 of 30...

Ut waves HW Chapter 11 ignment Score: 84.4% Resources Give Up? Feedback tion 19 of 30 > Assuming equal concentrations, arrange these solutions by pH. Highest pH HCIO,(aq) HF(aq) Sr(OH)2(aq) NH, (aq) LiOH(aq) Lowest pH Answer Bank SELIN > Activities and Due Dates > HW Chapter 11 t Score: 84.4% Resources [ Give Up? Feedback Resumi of 30 > Attempt Classify each aqueous solution as acidic, basic, or neutral at 25 °C. Acidic Basic Neutral pH = 2.86 pH =...
Assignment Score: 195/1800 Resources CX Give Up? Hint Check Answer Question 2 of 18 > Attempt...

Assignment Score: 195/1800 Resources CX Give Up? Hint Check Answer Question 2 of 18 > Attempt 2 The length of a pencil is measured with two rulers. Report the length of the pencil from each ruler with the proper number of digits. Ruler A: dm Ruler B: about us Careers privacy policy terms of use contact us help ^ - A do 12

Highest pH Lowest pH < Assignment Score: 986/2300 Resources Ex Give Up? Hint < Question 17...

Highest pH Lowest pH < Assignment Score: 986/2300 Resources Ex Give Up? Hint < Question 17 of 23 > Use the pH interactive to order the solutions by pH. Highest pH [OH-] = 10-11 m universal indicator turns the solution red red and blue litmus paper stay the same color universal indicator turns the solution violet H+ = 10-11 M 1096) Lowest pH Answer Bank -1096 -100) 00 delete-