(Could you explain how I can answer the question and what the equation I will use).
1-Calculate the pH of an acetic acid (CH3CO2H)/ sodium acetate (NaCH3CO2) buffer Containing (0.0400 M CH3CO2H) and (0.080 M NaCH3CO2).
Chemical Equation=
pH=
2- Calculate the net Values of ΔH° and ΔS° for the reaction:
CH4(g) + 2O2(g) --> CO2(g) + 2 H2O(g)
ΔH°=
ΔS°=
ΔG°=
Is this reaction spontaneous ? Clearly explain your answer.
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(Could you explain how I can answer the question and what the equation I will use)....
I am having a heck of a time understanding these. If you could explain the steps that would be wonderful! a. If the reaction above (c) were conducted at 273K with [NH4+] = 0.34M and [NO3-] = 0.12M, what would be the value of ΔG? Would the reaction be spontaneous in the forward or reverse direction? b. Should CrCl3 be more soluble in a solution buffered at pH = 5.5 or pH = 9.5, given that it forms the complex...
Use the Henderson-Hasselbalch equation to perform the following calculations. The K a of acetic acid is 1.8 10 –5 . a. Buffer A: Calculate the mass of solid sodium acetate required to mix with 100.0 mL of 0.5 M acetic acid to prepare a pH 4 buffer. Record the mass in your data table. b. Buffer B: Calculate the mass of solid sodium acetate required to mix with 100.0 mL of 1.0 M acetic acid to prepare a pH...
9. Explain as much as you can! I alreadyknow the answer, but
need to know why! Use written words as well.
sp (9) Calculate the pH of a buffer solution that contains 0.820 grams of sodium acetate and 0.010 moles of acetic acid in 100 ml of water. The Ka of acetic acid is 1.77x10
With this information how would I calculate the pH of
.01 M Ammonia solution and the pH of .01 M Ammonia buffer
solution
I need
Ph of acetic acid! sorry for the wrong wording!
A. Preparation of Acetic Acid-Acetate Buffer Solution An acetate buffer contains the acid-base pair, acetic acid and the acetate fon (typically added as sodium acetate). For acetic acid, pk, = -log (1.8 10 = 4.74. Consider the con ditions that will yield 100 ml of an...
Use the Henderson-Hasselbalch equation to perform the following calculations. The Ka of acetic acid is 1.8 x 10–5. Buffer A: Calculate the mass of solid sodium acetate required to mix with 100.0 mL of 0.5 M acetic acid to prepare a pH 4 buffer. Record the mass in your data table. Buffer B: Calculate the mass of solid sodium acetate required to mix with 100.0 mL of 1.0 M acetic acid to prepare a pH 4 buffer. Record the mass...
a) What is the pH of a solution that consist of 0.20 M ammonia, NH3, and 0.20 M ammonium choride, NH4Cl? (Kb for ammonia is 1.8 x 10-5) b) 1.25 g of benzoic acid (C6H5CO2H) and 1.25 g of sodium benzoate (NaC6H5CO2) are dissolved in enough water to make 250 mL solution. Calculate the pH of the solution using the Handerson-Hasselbach equation (Ka for benzoic acid is 6.3 x 10-5). c) What is the pH after adding 82 mg of...
3) Answer all parts of the following question. a. The reaction: Al(s) + Fe2O3(s) → Fe(s) + Al2O3(s) has ΔH = -847.6 kJ and ΔS = -41.3 J/K at 25°C. Calculate ΔG and determine if it is spontaneous. b. Above what temperature does the following reaction become nonspontaneous? FeO(s) + CO(g) → CO2(g) + Fe(s) ΔH = -11.0 kJ; ΔS = -17.4 J/K c. Find ΔSsurr and predict whether or not this reaction will be spontaneous at 398 K. NH3(g)...
Part A) you will be preparing a buffer solution. The solution is 50.0 mL of a 0.200 M acetate buffer, pH 5.00, starting from a 1.00 M solution of acetic acid and solid sodium acetate. pKa of acetic acid = 4.74 molar mass of sodium acetate = 82 g/mol Hint: Use the Henderson-Hasselbach equation (Eq. 21) Use the equation [salt] + [acid] = 0.200 M Please calculate the number of mL of 1.00 M acetic acid and the number of...
Use the Henderson-Hasselbach equation to calculate the mass of solid sodium acetate required to mix with 50.0 mL of 0.10 M acetic acid to prepare a pH 4 buffer. Ka for acetic acid is 1.8 x 10-5.
A buffer containing acetic acid and sodium acetate has a pH of 5.55. The K, value for CH3CO,H is 1.80 x 10. What is the ratio of the concentration of CH3CO H to CH3CO,t? [CH,CO,H1 CH2C0, 1 = Calculate the pH of a solution that has an ammonium chloride concentration of 0.054 M and an ammonia concentration of 0.053 M. Kb = 1.8 x 10-5 pH = What is the pH of 0.35 M acetic acid to 1.00 L of...