pKb = -log(3.6 x 10-7) = 6.4437
So, pOH = (6.4437/2) - 1/2log(0.185) = 3.5583
Thus, pH = 14 - 3.5583= 10.4117
Molarity of H+ = 3.8749 x 10-11 M
To Calculate the percent error, the Observed value of the pH is required.
Consider a 0.185 M solution of NaClO3 (Kb ClO = 3.6 x 10-7 What is the...
Consider a 0.25 M solution of H2CO3 (Kg = 4.4x10-7) What is the molarity of H? What is the pH What is the percent error in your answer
What is the pH of a 0.45 M solution of C6H5NH2? Kb= 3.9 x 10-10
Determine the pH of a 1.0 x 10-2 M solution of HCN. Kb for CN- = 1.6 X 10-5 Select one: O a. 2.5 O b. 5.6 O C. -5.6 O d. -3.6 O e. 8.4
What is the pH of a .62 M [C5H5NH]NO3 solution? Kb(C5H5N) = 1.7 x 10-9 Kb(NH3) = 1.8 x 10-5
Calculate the hydroxide concentration of a 0.024 M methylamine solution. Kb is 4.2 x 10-4 This problem has a second part in the problem below.... part 1 .What is the OH- concentration? B) Consider the same 0.024 M methylamine solution. Kb is 4.2 x 10-4 part 2 -- what is the pH?
What is the pH of a 0.35 M A solution that has a Kb-3.7 x 10-6 ? The equation for the dissociation of A is: A (aq) + H20 (99) =HA (aq) + OH(aq) Answer to two decimal places.
What is the pH of a 0.2 M CH3CH2NH3(BrO) solution? Kb(ethylamine CH3CH2NH2)=4.3 x 10^-4 Ka (HBrO) = 2.3 x 10^-9 The answer is "pH 11", but I keep getting 11.96. (i compared Ka to kb and used Kb since it is bigger) then solved for pH using only Kb. Please explain the correct way of doing it if i was doing it wrong. thanks!
1. Calculate the pH of a 0.543 M aqueous solution of codeine (C18H21O3N, Kb = 8.9×10-7). pH = 2. Calculate the pH of a 0.1250 M aqueous solution of piperidine (C5H11N, Kb = 1.3×10-3). pH = 3. Calculate the pH of a 0.0774 M aqueous solution of the weak base triethylamine ((C2H5)3N, Kb = 5.20×10-4). pH =
You have a 0.776 M solution of the base pyridine. Kb = 1.7 x 10" Find the pH of the pyridine solution. Round your answer to two places past the decimal. Type your answer...
Part F If the [OH in a solution is 7 x 10 5 M, what is the [H3 O1? Express your answer to one significant figure. να ΑΣΦ ? H2O= You have already submitted this answer. Enter a new answer No credit lost Try again Part G If the OH in a solution is 7 x 10 M what is the plH of the solution? Express your answer using one decimal place. AXO ? pH= Request Answer Submit art H...