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The unbalanced reaction in BASIC solution: MnO4 ++MnO2 + 12 What are the stiochiometric coefficients for:...
Balance the following REDOX reaction in basic solution: I2(s) + MnO2(s) ---> I-(aq) + MnO4-(aq) (E0 = -0.060 V) The equilibrium constant for this reaction at 25 degrees C is: 8.30 X 10-7 b. 1.38 X 10-7 c. 0.36 d. 8.30 X 107
Question 7 1.5 pts Given the partial equation: MnO4+1 MnO2+12, balance the reaction in basic solution using the half-reaction method and fill in the coefficients. The missing blanks represent H20, H, or OH, as required to balance the reaction. Enter the coefficients as integers, using the lowest whole numbers. If the coefficient for something is "1", make sure to type that in and not leave it blank. Enter only the coefficients. MnO4 + MnO2+
When the following reaction is balanced under basic conditions, what is the ratio of the coefficients of Mn(OH)2(s) to MnO4--(aq)? Mn(OH)2(s) + MnO4 (aq) + MnO42-(aq) (A) 3:1 (B) 1:3 (C) 1:4 (D) 1:5 What is the standard reduction potential for the reduction of permanganate ion to managanese dioxide in acidic solution? Half-Reaction E. V MnO4 (aq) + 8 H(aq) + 5 € → Mn²+ (aq) + +1.51 4 H2O(1) MnO2(s) + 4 H (aq) + 2 e → Mn2+(aq)...
What is the expected standard cell potential for the following unbalanced reaction under basic conditions? MnO4-(aq) + Fe+2(aq) ⟶ Fe+3 (aq) + MnO2(s) Given: Fe3+ + e− ⟶ Fe2+ E1/2= 0.771 MnO4−+ 2 H2O + 3e− ⟶ MnO2 + 4OH− E1/2 = 0.558 A. -0.213 V B. +0.213 V C. -1.329 V D. +1.329 V E. None of the above
Question 3 1 pts The rate constant, k, of the first order reaction A B +C is k = 8.62 x 10-35-1. If the initial concentration of A is 2.74 M, how long will it take for the concentration of A to fall below 0.32 M? Give your answer to one decimal place in MINUTES (do not input the units). For example, if your answer is 8.956 minutes, enter 9.0 Question 4 1 pts The rate constant, k, of the...
please answer all questions for rate. thank you :) For the following equation: MnO4 (aq) + Ca(s) → MnO2(s) + Ca?*(aq) Standard Reduction Potential values: Mno. MnO2 = 1.68 V Ca? / Ca = -2.76 V (1) Write balanced half-reaction equations for oxidation and reduction (2) Write the balanced equation for the overall redox reaction (3) Use the two balanced half-reactions and standard reduction potential values to construct a spontaneous galvanic cell, and write the cell notation for the galvanic...
Balance the following equation in basic solution: MnO4 (aq) +Fe(OH)2(5) -- MnO2(s) + Fe(OH)3(s) What is the coefficient of water? O A. 1 B.8 C. 6 D.4 O E. 2
Incorrect Question 9 0/2 pts A first order reaction with a k=0.216 (with units expressed in hours). How long in hours, to have 87.5% of the original concentration remaining. Answer to 2 decimal places. 0.62 Partial Question 6 1.5/3 pts The following reaction was run four times: NO(g) + Cl2le) - NOCIE) What is the order of reaction with respect to: NO- 1/2 C12= 1 Solve for the reaction constant (proportionality constant): k= 1.14 X10 -5 (Answer to 2 decimal...
question 12 & 13 12. The following reaction is second order in respect to CH3COOCH3. The rate constant is 2.0 X 103 L/(mol s), what is the concentration of the CH3COOCH3 after 4 minutes if the initial concentration of CH3COOCH3 is 0.25 M? CH3COOCH3 OH CH3COOCH3OH o inao si odool ni 00 o otil-lipd & aart noisassno shoo Aa noitbe 0 PJE (slow) 20 13. Hydrogen peroxide and iodide ion react in the following steps. H2O2 (aq) I' (aq) I0...
Question 22 2 pts The following reaction is first order in respect to CH3OH and first order in respect to HCI. With this in mind, what is the rate constant for the reaction? Be sure you choose the answer with the right units. CH2OH(aq) + HCl(aq) CH2Cl (aq) + HO (0) CH3OH HCI Initial Rate Reaction conc. conc. (M/s) 1 0.100 M 0.100 M 1.1 x 10-2 *conc = concentration 1.1 M-1 • 5:1 1.15-1 11 M-1.5-1 11 5-1 Question...