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3a. Calculate the pH of a 7.8x10 * M HCl solution. 3b. Is this solution acidic,...
1) Calculate the pH of the 1L buffer composed of 500 mL of 0.60 M acetic acid plus 500 mL of 0.60 M sodium acetate, after 0.010 mol of HCl is added (Ka HC2H3O2 = 1.75 x 10-5). Report your answer to the hundredths place. 2) Calculate the pH of the 1L buffer composed of 500 mL 0.60 M acetic acid plus 500 mL of 0.60 M sodium acetate, after 0.010 mol of NaOH is added (Ka HC2H3O2 = 1.75...
Calculate the pH, [H3O+], [OH-], and pOH for 0.25 M HF. Is this acidic, basic, or neutral? Complete the following chart with the appropriate responses. Solution pH [H301 Он] POH Acidic, Basic, or Neutral Shong acid 0.15 M HCI -log(0.15) 0.824 10.15m 14.0-0.824 13.176 strong acid -log(2.5.10-) 2.5 x 10 - MHCI 4.600 14.0-4.60 9.4 2.5*10 weak acid 0.25 M HF
A buffer solution is made such that the initial concentrations of lactic acid (HC3H5O3) and the lactate ion (C3H5O3-) are both 0.600 M. What is the resulting pH if 10.0 mL of 1.00 M HCL is added to 0.500 of the buffer solution? (ka of HC3H5O3= 1.4 x 10^-4)
10. (a) Determine the pH of 0.10 M lactic acid (HC3H5O3) (b) What is the pH of a buffer that is 0.12 M lactic acid and 0.10 M sodium lactate (NaC2H5O3)? For lactic acid. Ka - 1.4 x 104. (10) 11. Hydrazine, N2H4, is a weak base. Write the equation for the reaction of hydrazine with water and write the expression for Kb. (5) Na Hj
Calculate and fill in the following information and indicate whether the solution is acidic, 4 basic, or neutral. (2 pts. each) You must show work in order to receive full credit. acidic, basic, or neutral [H3o] OH] pH POH 1.98 x 10 a) b) 8.30 (You must show work in order to receive full credit for mathematical problems.) (8 pts.) 5. Lactic acid (HCaHs03, K 1.38 x 10"), which occurs in sour milk and foods such as sauerkraut, is a...
5. Calculate the pH of a 6.7 x 10-2 M Ba(OH)2 solution. A) 13.13 B) 1.17 C) 12.82 D) 6.7 E) 2 6. For the diprotic acid H2SO3 and its acid ionization constants which statement below is true? A) Ka, 1 > Ka, 2 B) Ka, 1 = ka, 2 C) Kal <ka, 2 7. Which of these solutions has the lowest pH value? A) 0,010 M HNO3 B) 0.020 M HNO3 C) 0.010 M NH4NO3 8. Which one of...
What is the pH of a 1.00 L solution containing 0.295 M lactic acid, HC3H5O3 (pKa = 3.86) and 0.295 M sodium lactate, NaC3H5O3, upon the addition of 0.055 mol HCl? Assume no significant volume change occurs.
3. What is the pH of a buffer solution that is 0.266 M in lactic acid and 0.14 M in sodium lactate? The K, of lactic acid is 1.68 x 10-4.
1.Calculate the pH of each solution and indicate whether the solution is acidic or basic. A. [H3O+] = 1.8 x 10-4M B.[H3O-] =7.2 x 10-9M 2.Calculate the [OH-] in each solution and determine whether the solution is acidic =, basic, or neutral. A. [H3O+] = 7.5 x 10-5M B. [H3O+] = 1.5 x 10-9M C.[H3O+] = 1.0 x 10-7M 3. Write a molecular equation for the neutralization reaction between aqueous HCI and aqueous Ca(OH)2?
Calculate the pH and pOH of 1.2 x 10-3 M HCl solution. Calculate pH, pOH and [OH-] of 0.1 M HNO3 solution. If a solution X has pH = 5, which of the following is true: Solution X is neutral. H3O+ ion concentration is higher than OH- concentration. c. OH- ion concentration is higher than H3O+ concentration.