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For a 0.7M HF solution with a Ka= 6.6x10-4 What is the H30+ concentration: Whats id...
help me pls QUESTION 7 For a 0.7M HF solution with a Ka= 6.6x10-4 What is the H30+ concentration: Whats id the pH: QUESTION 8 What is the pH of a buffer with with 0.6M sodium acetate and 0.7 acetic acid (Ka#1.8x10-5 (Please do two decimal places) pH QUESTION 9 How did you really feel about workshop/lecture? what did you like? what did you not like? (Don't be afraid to be honest) For the toolbar, press ALT+F10 (PC) or ALT+FN+F10...
3. A solution is prepared by treating 50 mL of 0.50 M HF (Ka = 6.6x10 ) with 10 mL of 1.15 M NaOH. Calculate the pH of the solution. 4. If enough NaOH is added to the solution in problem 3 to neutralize the HF, what will the pH be? 5. 42.16 mL of a solution of NaOH are required to neutralize 0.7878 g of potassium hydrogen phthalate (Mwt = 204.23 g/mol). Calculate the molar concentration of NaOH in...
Given the value Ka of HF is 6.6x10^-4, write an equilibrium equation for the reaction in water of the following and calculate the pH for: a) .100 M HF b) .100 M NaF
Calculate the pH of a 0.10-M solution of sodium fluoride (NaF) at 25°C. Ka (HF) = 6.6x10^-4 (Please explain all steps and reasoning)
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 concentration of all species present and the pH of a 0.019-M HF solution. Ka for HF is 7.2 x 10-4 a (H+) = [F-]= [HF] = [OH-]= Submit
HF is an acid with Ka=6.8x10-4. A sample of HF with an approximate concentration of 0.10M is titrated with strong base. What will be the pH at the equivalence point?
a 50.0 ml solution of .120M HF is about to be titrated with .060M NaOH, the Ka of HF is 6.6x10^-4. what is the pH of the HF solution prior to any NaOH added? 2. what is the pH of the solution if 25.0mL of NaOH is added to the 50.0mL volume of HF? 3. what is the pH if a total of 50.0mL of the .060M NaOH is added to the 50.0mL volume of HF? 4. what is the...
what is the pH of a 0.350M MgF2 solution? Ka of HF = 3.5x10^-4
What is the pH of a 0.400 M. solution of HF (Ka = 6.8 x 10-4)?