a)What is the kb for F- given that the ka for HF is 6.8*10-4. b)What is the pH of a 0.379 M solution of NaF? i just really need part b. i have part a.
a)What is the kb for F- given that the ka for HF is 6.8*10-4. b)What is...
What is the pH of a 0.100 M F- solution? ka(HF) = 6.8*10^-4 kb(F-) = 1.5*10^-11
What is the pH of a 0.400 M. solution of HF (Ka = 6.8 x 10-4)?
Find the pH and percent ionization for each HF solution. (Ka for HF is 6.8 x10-4.) Please use this Ka that is given to solve a. 0.250 M HF b. 0.100 M HF c. 0.050 M HF
Hydrofluoric acid, HF, has a Ka of 6.8 ×10−4. What are [H3O+], [F−], and [OH−] in 0.880 M HF?
Consider 1.0 L of a solution which is 0.45 M HF and 0.2 M NaF (Ka for HF = 7.2 x 10-4). Assume 2 significant figures in all of the given concentrations so that you should calculate all of the following pH values to two decimal places. Calculate the pH after 0.10 mol of HCl has been added to the original solution. Assume no volume change on addition of HCl. Why do we need to convert to Kb? I know...
Find the pH and percent ionization of each HF solution (Ka for
HF is 6.8 X 10^-4)
Please show your work, and explain. Thank you!
Co < CHE180 Review Exercise 16.77 Find the pH and percent ionization of each HF solution (Ka for HF is 6.8 x 104) PartA Find the pH of a 0.240 M solution. Express your answer to two decimal places. pH Submit Previous Answers Request Answer X Incorrect; One attempt remaining: Try Agairn Part B Find...
8) The Ka of hydrofluoric acid (HF) at 25.0 C is 6.8 x10-4. What is the pH of a 0.15 M aqueous 8) solution of HF? A) 4.60 B) 0.82 C)3.64 D) 1.17 E) 2.00
If a solution of HF (Ka=6.8×10^−4) has a pH of 3.50, calculate the concentration of hydrofluoric acid. So far, I've made 5 incorrect attempts at the answer and have one attempt remaining. My answers were as follows: 0.00015, 1.5x10^-4, 1.5x10^-5, 0.001, and 0.00032 (This last answer prompted the website to tell me: "This value is the concentration of H+. This concentration and the Ka value can be used along with the equation for Ka to determine the initial concentration of...
Calculate the pH of a 3.51×10-3 M solution of NaF, given that the Ka of HF = 6.80 x 10-4 at 25°C.
Calculate the pH of a 3.27×10-3 M solution of NaF, given that the Ka of HF = 6.80 x 10-4 at 25°C.