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4. (5 pts.) A pair of elementary reaction occurs as follows: 2 A (aq) → 30...
A pair of elementary reaction occurs as follows: 2 A (aq) = 3 C The forward...
A pair of elementary reaction occurs as follows: 2 A (aq) = 3 C The forward and reverse rate constants are 35.32 M-1min-1 and 24.41 M-2min-1, respectively. The equilibrium constant for this reaction is: (a) 0.572 M (b) 1.45 M (c) 2.70 M (d) 0.517 M-1
Multiple choice: 3. (5 pts.) The oxidation of copper metal by iron (III) chloride used in...
Multiple choice: 3. (5 pts.) The oxidation of copper metal by iron (III) chloride used in the etching of circuit boards goes as follows: 2 Fe3+ (aq) + Cu (s) → 2 Fe2+ (aq) + Cu2+ (aq) The reduction potential for the Fe3+/Fe2+ and Cu2+/Cu pair are +0.772 V and -0.340 V, respectively. The concentrations are [Fe3+] = 1.24 M, [Fe2+] = .248 M, and [Cu2+] = .342 M. The electrical potential for this cell at 25.00C is: (a) +1.057...
2. For the equilibrium between dinitrogen tetroxide and nitrogen dioxide: N204 = 2 NO2 Suppose that...
2. For the equilibrium between dinitrogen tetroxide and nitrogen dioxide: N204 = 2 NO2 Suppose that both the forward and reverse reactions are elementary processes with rate constants of k, and kr respectively, and the equilibrium constant for the process is 14.48 at 298 K. If the rate of the reverse reaction is 1324 M/s when (NO2) = 0.60 M, what is the half-life for the decomposition of dinitrogen tetroxide (the forward reaction) at the same temperature?
The ion pair MgSO4 is formed in solution via the reaction below: In a system where...
The ion pair MgSO4 is formed in solution via the reaction below: In a system where the initial state is [Mg"2-0.10 M, [S04-21,-0.10 M and [MgSOJ,-0.00 M, the equilibrium constant was found to be 1.015. Calculate the ratio of the rate constants for the forward (k) and reverse (kb) reactions (kf/ ko). Calculate the state of the system at equilibrium.
3) Consider an elementary reversible reaction that describes the bind ing of a hormone (H) to...
3) Consider an elementary reversible reaction that describes the bind ing of a hormone (H) to a cell surface receptor (R): k H R HR k, The forward rate constant (k) is 1 mM-1 s, and the reverse rate constant (k) is 2 s. a) Write a rate law for the rate of formation of HR in terms of the species and rate constants. b) If the initial concentrations of H, R, and HR are 0.0005, 0.2, and 0.1 mM,...
An elementary reaction is as follows: 4 A (g) = 3C (g) + 2 D (l) A...
An elementary reaction is as follows: 4 A (g) = 3C (g) + 2 D (l) A chemist found that in a 4.20 Liter container, the species C changed from 1.00 moles to 6.84 moles in 1.28 minutes during the synthesis. The rate of consumption for A in molarity per minute must be: (a) -2.46 (b) - 1.09 (c) - 1.45 (d) - 0.586
A+B=C+D equilibrium constant can be expressed as a ratio of the concentrations: KOD AB his is...
A+B=C+D equilibrium constant can be expressed as a ratio of the concentrations: KOD AB his is an elementary chemical reaction, then there is a single forward rate and a single reverse rate for this reaction, which can be written as follows: forward rate = kr[A][B] reverse rate = k CD ere kr and ky are the forward and reverse rate constants, respectively. When equilibriums reached, the forward and reverse rates are equal ky[A] B-k CD us, the rate constants are...
Item 30 < 30 of 37 Constants Periodic Table Learning Goal: To determine equilibrium concentrations from...
Item 30 < 30 of 37 Constants Periodic Table Learning Goal: To determine equilibrium concentrations from initial conditions. The reversible reaction Calculating equilibrium concentrations when the net reaction proceeds forward Consider mixture B, which will cause the net reaction to proceed forward. net + XY(aq) = X(aq) + Y(aq) has a reaction quotient Qc defined as Qc = Concentration (M) initial: change: equilibrium: XY] 0.500 X 0.100 Y] 0.100 + 0.100+ + 0.500 – 2 0.100+2 The change in concentration,...
5.The kinetics of double strand formation for a DNA oligonucleotide containing a G.T base pair was...
5.The kinetics of double strand formation for a DNA oligonucleotide containing a G.T base pair was measured by temperature-jump kinetics. The reaction is: 2CGTGAATTCGCG DUPLEX -1 The following data were obtained: Temperature (°C) 31.8 36.8 40.8 46.7 ki (M-ls-1 0.8x10-5 2.3x10-5 3.5x10-5 6.0x10-5 (A) Determine the equilibrium constant at each temperature from the forward and reverse rate constants. (B) Determine the free energy of the reaction at each temperature. (C) Using the forward reaction and the temperature dependence of k1,...
2. a) The forward rate constant for an elementary solution-phase reaction is 100 sl, and the...
2. a) The forward rate constant for an elementary solution-phase reaction is 100 sl, and the reverse rate constant is 0.1 M's!. What is the standard Gibbs free energy change, AG", for this reaction? The temperature is 300 K. b) For the same reaction, the free energy of activation, AG , for the forward reaction is 50 kJ/mole. What is the activation free energy, AG,, for the reverse reaction? c) If the solvent is changed to one that interacts with...
Multiple choice: 3. (5 pts.) The oxidation of copper metal by iron (III) chloride used in the etching of circuit boards goes as follows: 2 Fe3+ (aq) + Cu (s) → 2 Fe2+ (aq) + Cu2+ (aq) The reduction potential for the Fe3+/Fe2+ and Cu2+/Cu pair are +0.772 V and -0.340 V, respectively. The concentrations are [Fe3+] = 1.24 M, [Fe2+] = .248 M, and [Cu2+] = .342 M. The electrical potential for this cell at 25.00C is: (a) +1.057...
2. For the equilibrium between dinitrogen tetroxide and nitrogen dioxide: N204 = 2 NO2 Suppose that both the forward and reverse reactions are elementary processes with rate constants of k, and kr respectively, and the equilibrium constant for the process is 14.48 at 298 K. If the rate of the reverse reaction is 1324 M/s when (NO2) = 0.60 M, what is the half-life for the decomposition of dinitrogen tetroxide (the forward reaction) at the same temperature?
The ion pair MgSO4 is formed in solution via the reaction below: In a system where the initial state is [Mg"2-0.10 M, [S04-21,-0.10 M and [MgSOJ,-0.00 M, the equilibrium constant was found to be 1.015. Calculate the ratio of the rate constants for the forward (k) and reverse (kb) reactions (kf/ ko). Calculate the state of the system at equilibrium.
3) Consider an elementary reversible reaction that describes the bind ing of a hormone (H) to a cell surface receptor (R): k H R HR k, The forward rate constant (k) is 1 mM-1 s, and the reverse rate constant (k) is 2 s. a) Write a rate law for the rate of formation of HR in terms of the species and rate constants. b) If the initial concentrations of H, R, and HR are 0.0005, 0.2, and 0.1 mM,...
A+B=C+D equilibrium constant can be expressed as a ratio of the concentrations: KOD AB his is an elementary chemical reaction, then there is a single forward rate and a single reverse rate for this reaction, which can be written as follows: forward rate = kr[A][B] reverse rate = k CD ere kr and ky are the forward and reverse rate constants, respectively. When equilibriums reached, the forward and reverse rates are equal ky[A] B-k CD us, the rate constants are...
Item 30 < 30 of 37 Constants Periodic Table Learning Goal: To determine equilibrium concentrations from initial conditions. The reversible reaction Calculating equilibrium concentrations when the net reaction proceeds forward Consider mixture B, which will cause the net reaction to proceed forward. net + XY(aq) = X(aq) + Y(aq) has a reaction quotient Qc defined as Qc = Concentration (M) initial: change: equilibrium: XY] 0.500 X 0.100 Y] 0.100 + 0.100+ + 0.500 – 2 0.100+2 The change in concentration,...
5.The kinetics of double strand formation for a DNA oligonucleotide containing a G.T base pair was measured by temperature-jump kinetics. The reaction is: 2CGTGAATTCGCG DUPLEX -1 The following data were obtained: Temperature (°C) 31.8 36.8 40.8 46.7 ki (M-ls-1 0.8x10-5 2.3x10-5 3.5x10-5 6.0x10-5 (A) Determine the equilibrium constant at each temperature from the forward and reverse rate constants. (B) Determine the free energy of the reaction at each temperature. (C) Using the forward reaction and the temperature dependence of k1,...
2. a) The forward rate constant for an elementary solution-phase reaction is 100 sl, and the reverse rate constant is 0.1 M's!. What is the standard Gibbs free energy change, AG", for this reaction? The temperature is 300 K. b) For the same reaction, the free energy of activation, AG , for the forward reaction is 50 kJ/mole. What is the activation free energy, AG,, for the reverse reaction? c) If the solvent is changed to one that interacts with...
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