(2a) Calculate AG for reaction of hydrogen sulfide (gas) bubbling into an aqueous solution at the...
(25) An OPEN system contains hydrogen sulfide gas (H2S (g)...think rotten egg smell) at a concentration of PH2S 5x104 atm. The following two (2) equilibrium expressions apply (note: the term aq" refers to the liquid species of H2S) KH 0.08 M/atm (2) H2S (aq) H +HS H2S (aq) (1) H2S () K4 1070 a. Calculate the equilibrium H2S (aq) Concentration (in M) for this OPEN system and show the line on the Log C vs pH diagram. h Using the...
Calculate the pH of a 0.982 M solution of hydrogen sulfide (H2S) Where: H2S (aq) -> H+ (aq) + HS- (aq) Ka1 = 1.0 x 10-7 HS- (aq) -> H+ (aq) + S2- (aq) Ka2 = 1.0 x 10-19 Enter your answer with at least 2 sig figs.
answer all parts (a and b) please! Hydrogen sulfide (H2S) is a diprotic weak acid which can be used to selectively precipitate metal sulfide compounds from solution. The two deprotonation reactions of hydrogen sulfide are provided below along with their respective acid dissociation constants. H2S(ag) + H2O7) = HS (an) + H30+(aq) Kal = 1.0 * 10-7 HS (aq) + H2O) = 52 (ag) + H30 (29) K22=1 * 10-19 Imagine you have an aqueous solution buffered at pH 3...
1) Consider the following reaction of hydrogen sulfide with oxygen gas to form sulfur dioxide and hydrogen gas HS + O2(g) SO2(g) +H219) a) If AH = -276.73 kJ/mol and AS --31.52 1/(mol*K), what is the equilibrium constant (K) at 8500. K? You will have to solve for AG first. b) 250.0 mmol of HS and 250.0 mmol of Oz were placed in a 1.250 L flask at 8500. K. What are the equilibrium concentrations of all species? c) What...
A solution is prepared by adding 0.400 mol of hydrogen sulfide, H2S (pKa = 7.00) and 0.400 mol of the hydrogen sulfide ion, HS to 100.0 mL of water. Predict the final pH when 55.0 mL of 1.10 M NaOH is added to this buffer solution. Please explain. Thank you!
Hydrosulfuric acid, also known as hydrogen sulfide, is a diprotic acid. Its two-stage ionization is shown below: H2S(aq) ⇆ H + + HS- (aq) Ka1 = 5.70x10-8 HS- (aq) ⇆ H + + S2- (aq) Ka2 = 1.0x 10-9 a. Calculate the concentration of HS- ion in a 0.222 M H2S solution. b. Determine the pH of the solution. c. Determine the S2- concentration. Please write out all answers step-by-step :-)
1) Consider the following reaction of hydrogen sulfide with oxygen gas to form sulfur dioxide and hydrogen gas HS) + O2(g) SO2(g) + H2O a) IF AH = -276.73 kJ/mol and AS = -31.52 /moi"), what is the equilibrium constant (K) at 8500. K? You will have to solve for AG first. b) 250.0 mmol of H35 and 250.0 mmol of 0 were placed in a 1.250 L flask at 8500. K. What are the equilibrium concentrations of all species?...
Since the computed value for AG is positive, the reaction is nonspontaneous under these conditions. Check Your Learning Calculate the free energy change for this same reaction at 875 °C in a 5.00 L mixture containing 0.100 mol of each gas. Is the reaction spontaneous under these conditions? ANSWER: AG +45.1 kJ/mol; no Calculating AG under Nonstandard Conditions What is the free energy change for the process shown here under the specified conditions? T 25 °C, PN, 0.870 atm, PH=0.250...
The equilibrium constant (Kp) for the reaction below is 4.40 at 2000. K. 0 Calculate AG for the reaction 24.64 kJ/mol Calculate AG for the reaction when the partial pressures are PH, 0.28 atm, Pco,0.75 atm, H2O = 0.65 atm, and CO*. Pco-1.16 atm. The equilibrium constant (Kp) for the reaction below is 4.40 at 2000. K. 0 Calculate AG for the reaction 24.64 kJ/mol Calculate AG for the reaction when the partial pressures are PH, 0.28 atm, Pco,0.75 atm,...
Since the computed value for AG is positive, the reaction is nonspontaneous under these conditions. Check Your Learning Calculate the free energy change for this same reaction at 875 °C in a 5.00 L mixture containing 0.100 mol of each gas. Is the reaction spontaneous under these conditions? ANSWER: AG = +45.1 kJ/mol; no EXAMPLE 16.12 Calculating AG under Nonstandard Conditions What is the free energy change for the process shown here under the specified conditions? T = 25 °C,...