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Incorrect Question 9 0/2 pts A first order reaction with a k=0.216 (with units expressed in...
2 pts A first order reaction with a k=0.216 (with units expressed in hours). How long,...
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. Question 10 1 pts Calculate the Ea (kJ/mol) to 3 significant figures for the reaction: 2HI(g) +H2(g) + 12(e) kq=2.15x108 (1/M x sec) at 6.50x102K(T1) k2-2.39x107(1/Mx sec) at 7.00x102K(T2) R-8.31 J/mol x K) (Hint: you will need to convert this to kJ)
D Question 7 2 pts How long (in hours) does it take for a first order...
D Question 7 2 pts How long (in hours) does it take for a first order reaction to go from 0.050 M to 0.010 M? Answer to three decimal places. k=2.42 (1/hr) Question 8 2 pts A second order reaction at 443°C has a k-30. with the units appropriate for a second order reaction. How much time (in minutes) does it take for the concentration of the reactant to drop from 0.010M to 0.0050 M? Answer to 1 decimal place.
Question 3 1 pts The rate constant, k, of the first order reaction A B +C...
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...
4) If the reaction SO2Cl2 → SO2 + Cl2 is first-order reaction. At 230oC, k =...
4) If the reaction SO2Cl2 → SO2 + Cl2 is first-order reaction. At 230oC, k = 0.125 hr-1. If the initial concentration of SO2Cl2 is 0.250 M, what is the concentration after 7.6 hours? How long will it take for the concentration of SO2Cl2 to drop to 0.0651 M? What is the half-life for this first order reaction?
Question 22 2 pts The following reaction is first order in respect to CH3OH and first...
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...
Please explain the correct answer for both questions. Thank you! Incorrect Question 7 0/1 pts The...
Please explain the correct
answer for both questions. Thank you!
Incorrect Question 7 0/1 pts The concentration of iodide ions in a saturated solution of lead (11) iodide is_ The solubility product constant of Pblz is 1.4x10-8. 3.5x10-9 3.0x10-3 1.5x103 1.4x10-8 3.8x10-4 Incorrect Question 9 0/1 pts The molar solubility of lead () chloride (PbCl2) is 1.6x102 M. What is the Ksp of PbCl2? 4.1x10-6 5.0x10-4 1.6x10-2 3.1x107 1.6x10-5
Please explain the correct answer for both questions. Thank you! Incorrect Question 5 0/1 pts A...
Please explain the correct
answer for both questions. Thank you!
Incorrect Question 5 0/1 pts A 25.0 mL sample of 0.723 M HCIO4 is titrated with 0.27 M KOH solution. The H30* concentration after the addition of 80.0 mL of KOH is M. (Cl is chlorine, not carbon and iodine) 0.4 3x10-13 1x107 0.7 4x10-2 Incorrect Question 6 0/1 pts What could be the pKof this weak acid according to the titration curve below? Weak Acid Titration Curve PH 10...
Question 3 20 pts Given the following decomposition reaction: 2503 (9) = 2502 (9) + 02...
Question 3 20 pts Given the following decomposition reaction: 2503 (9) = 2502 (9) + 02 (9) Determine the value for K, as well as the partial pressures for each gas in the equation; if the reaction occurs at 1000 K and the initial partial pressure of SO3(g) is 0.500 atm. Note that at equilibrium the partial pressure of SO3 is 0.200 atm. Please give the answer as a decimal as follows: 0.001235 as 0.00124 (no spaces between characters and...
1. A reaction is second order in[A] and second-order in [B]: Rate,=K[A]^2[B]^2. what are the units...
1. A reaction is second order in[A] and second-order in [B]: Rate,=K[A]^2[B]^2. what are the units of k for this reaction? If the concentration of air decreases by a factor of 2 and the concentration of b increases by a factor of 5 what happens to the rate? 2. for the forward reaction 2NO+Cl2=>2NOCl. determine the rate(m/s)for experiment #4 given [NO]°(M)=0.40M and [Cl2]°z(M)=0?20M. Rate? 3.The following data were collected over time for the forward reaction 2NO2=>2NO+O2 ( 1/[NO2]=100 at 0...
Thank you! Incorrect Question 4 0/1 pts Determine the correct order of steps that will occur...
Thank you!
Incorrect Question 4 0/1 pts Determine the correct order of steps that will occur for the possible reaction shown below. To enter your answer, use the numbers that are adjacent to the correct descriptions in the correct order. For example, if you felt that 1, followed by 2 and then 3 reflects the correct ordering of reaction steps, then you would enter: 1, 2, 3 for your answer. Do so even if the reaction sequence includes two distinct...
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. Question 10 1 pts Calculate the Ea (kJ/mol) to 3 significant figures for the reaction: 2HI(g) +H2(g) + 12(e) kq=2.15x108 (1/M x sec) at 6.50x102K(T1) k2-2.39x107(1/Mx sec) at 7.00x102K(T2) R-8.31 J/mol x K) (Hint: you will need to convert this to kJ)
D Question 7 2 pts How long (in hours) does it take for a first order reaction to go from 0.050 M to 0.010 M? Answer to three decimal places. k=2.42 (1/hr) Question 8 2 pts A second order reaction at 443°C has a k-30. with the units appropriate for a second order reaction. How much time (in minutes) does it take for the concentration of the reactant to drop from 0.010M to 0.0050 M? Answer to 1 decimal place.
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...
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...
Please explain the correct
answer for both questions. Thank you!
Incorrect Question 7 0/1 pts The concentration of iodide ions in a saturated solution of lead (11) iodide is_ The solubility product constant of Pblz is 1.4x10-8. 3.5x10-9 3.0x10-3 1.5x103 1.4x10-8 3.8x10-4 Incorrect Question 9 0/1 pts The molar solubility of lead () chloride (PbCl2) is 1.6x102 M. What is the Ksp of PbCl2? 4.1x10-6 5.0x10-4 1.6x10-2 3.1x107 1.6x10-5
Please explain the correct
answer for both questions. Thank you!
Incorrect Question 5 0/1 pts A 25.0 mL sample of 0.723 M HCIO4 is titrated with 0.27 M KOH solution. The H30* concentration after the addition of 80.0 mL of KOH is M. (Cl is chlorine, not carbon and iodine) 0.4 3x10-13 1x107 0.7 4x10-2 Incorrect Question 6 0/1 pts What could be the pKof this weak acid according to the titration curve below? Weak Acid Titration Curve PH 10...
Question 3 20 pts Given the following decomposition reaction: 2503 (9) = 2502 (9) + 02 (9) Determine the value for K, as well as the partial pressures for each gas in the equation; if the reaction occurs at 1000 K and the initial partial pressure of SO3(g) is 0.500 atm. Note that at equilibrium the partial pressure of SO3 is 0.200 atm. Please give the answer as a decimal as follows: 0.001235 as 0.00124 (no spaces between characters and...
Thank you!
Incorrect Question 4 0/1 pts Determine the correct order of steps that will occur for the possible reaction shown below. To enter your answer, use the numbers that are adjacent to the correct descriptions in the correct order. For example, if you felt that 1, followed by 2 and then 3 reflects the correct ordering of reaction steps, then you would enter: 1, 2, 3 for your answer. Do so even if the reaction sequence includes two distinct...
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