1. If 2.0x10-4moles of S2O82-in 50 mL of solution is consumed in 188 seconds, what is...
1. If 2.0x10-4moles of S2O82-in 50 mL of solution is consumed in 188 seconds, what is the rate of consumption of S2O82-?
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1. If 2.0x10-4moles of S2O82-in 50 mL of solution is consumed in
188 seconds, what is...
If 4.0×10−4 moles of S2O2−8 in 200 mL of solution is consumed in 190 seconds ,...
If 4.0×10−4 moles of S2O2−8 in 200 mL of solution is consumed in 190 seconds , what is the rate of consumption of S2O2−8?
If 1.65 X 10-4 moles of SO32- in 60 mL of solution are consumed in 185...
If 1.65 X 10-4 moles of SO32- in 60 mL of solution are consumed in 185 seconds, what is the rate in M/hr of consumption of SO32- ?
Addition of a 1.0-mL portion of 0.40 M Na2S2O3 solution (S2O32- ions) convert I2 (black with...
Addition of a 1.0-mL portion of 0.40 M Na2S2O3 solution (S2O32- ions) convert I2 (black with starch) back to I⁻ (clear) into the solution via the following reaction: I2(aq) + 2 S2O32-(aq) → 2 I⁻(aq) + S4O62-(aq) 1. Consider the reaction solution, which contains 25.0 mL of 0.40 M (NH4)2S2O8 in the total volume of 100.0 mL. Calculate the initial number of moles of S2O82- ion in the solution:______moles? 2. From Question 2 and 3, determine the amount of S2O82-...
3, Assuming that the equilibeium FeNCS2 concentration is 6.06 x 1os Min a solution that initially...
3, Assuming that the equilibeium FeNCS2 concentration is 6.06 x 1os Min a solution that initially was 1.00 x 103M in Felt and 2.00 x 10 SCN. Calculate the equilibrium concentrations of Fe and SCN and the value of K What is the pH of a solution that is 0.75 M in sodium acetate and 0.50 M in scetic acid? (Ke for acetic acid is 1.8 x 109)? 4. 5. If the pkn of a diprotic acid is 2.90, what...
Peroxodisulfate ion, S2O82–, decomposes in aqueous solution as follows: 2S2O82–(aq) + 2H2O(l) = 4SO42–(aq) + O2(g)...
Peroxodisulfate ion, S2O82–, decomposes in aqueous solution as follows: 2S2O82–(aq) + 2H2O(l) = 4SO42–(aq) + O2(g) + 4H+(aq) When the solution is buffered at pH = 1.00, the rate obeys the following rate law: Rate = – = k[S2O82–] /delta t = k[ S2O82-] Under this condition, it was found that it took 330 s for the concentration of S2O82- to decrease from 0.100 M to 0.072 M. (a) Calculate the rate constant k and indicate the appropriate unit for...
Report Sheet · Rates of Chemical Reactions I: A Clock Reaction 404 Report Sheet Rate 6....
Report Sheet · Rates of Chemical Reactions I: A Clock Reaction 404 Report Sheet Rate 6. If 2.0x10" moles of $20,- in 50 mL of solution is consumed in 188 seconds, what is sumption of S,0,2-2 7. Why are chemists concerned with the rates of chemical reactions? What possible practical Value type of information have? 8. Suppose you were dissolving a metal such as zinc with hydrochloric acid. How would the particle size of the zinc affect the rate of...
Calculate Delta [S2O82-] based on the number of moles of thiosulfate consumed. This Value is the...
Calculate Delta [S2O82-] based on the number of moles of
thiosulfate consumed. This Value is the same for all reactions.
S2O8-2 + 3I- ----> 2SO4-2 + I3
Procedure The volumes of solution required for each run are tabulated b 3 should both be clean, dry, labelled 150 mm test tu nto test tubes A and B using the calibrated automatic pipets at the bac for each run are tabulated below. Test Tube A and Test Tube dry, labelled 150 mm...
An iodine-clock kinetics experiment was performed by varying the composition of reactant solutions and measuring the...
An iodine-clock kinetics experiment was performed by varying the composition of reactant solutions and measuring the resulting rates of reaction. Initial Rate Experiment 1 Initial Rate Experiment 2 Initial Rate Experiment 3 Test tube contents 10.0 mL 0.10 M NaI(aq) 10.0 mL 0.10 M Na2S2O8(aq) 5.0 mL 0.0050 M Na2S2O3(aq) 1.0 mL starch solution 10.0 mL 0.10 M NaI(aq) 5.0 mL 0.10 M Na2S2O8(aq) 5.0 mL 0.10 M Na2SO4(aq) 5.0 mL 0.0050 M Na2S2O3(aq) 1.0 mL starch solution 5.0 mL...
A) Prepare 50 mL of a NaCI solution containing 1 ppm Na. - first prepare 250 mL of a 500 ppm Na solution in a 250 mL volumetric flask - dilute 1/500 to create 50 mL of 1 ppm Na solution in a 50...
A) Prepare 50 mL of a NaCI solution containing 1 ppm Na. - first prepare 250 mL of a 500 ppm Na solution in a 250 mL volumetric flask - dilute 1/500 to create 50 mL of 1 ppm Na solution in a 50 mL volumetric flask - you can check your calculations with the instructor before making the solution
A) Prepare 50 mL of a NaCI solution containing 1 ppm Na. - first prepare 250 mL of a 500...
Germinating corn at 22°C ml of 02 consumed Germinating corn at 12°C D Nongerminating corn at...
Germinating corn at 22°C ml of 02 consumed Germinating corn at 12°C D Nongerminating corn at 22°C Nongerminating corn - at 12°C Time (minutes) 1. Which of the following is a true statement based on the data? a. The amount of oxygen consumed by germinating corn at 22°C is appr twice the amount of oxygen consumed by germinating corn at 12°C. b. The rate of oxygen consumption is the same in both germinating and nongerminating corn during the initial time...
3, Assuming that the equilibeium FeNCS2 concentration is 6.06 x 1os Min a solution that initially was 1.00 x 103M in Felt and 2.00 x 10 SCN. Calculate the equilibrium concentrations of Fe and SCN and the value of K What is the pH of a solution that is 0.75 M in sodium acetate and 0.50 M in scetic acid? (Ke for acetic acid is 1.8 x 109)? 4. 5. If the pkn of a diprotic acid is 2.90, what...
Report Sheet · Rates of Chemical Reactions I: A Clock Reaction 404 Report Sheet Rate 6. If 2.0x10" moles of $20,- in 50 mL of solution is consumed in 188 seconds, what is sumption of S,0,2-2 7. Why are chemists concerned with the rates of chemical reactions? What possible practical Value type of information have? 8. Suppose you were dissolving a metal such as zinc with hydrochloric acid. How would the particle size of the zinc affect the rate of...
Calculate Delta [S2O82-] based on the number of moles of
thiosulfate consumed. This Value is the same for all reactions.
S2O8-2 + 3I- ----> 2SO4-2 + I3
Procedure The volumes of solution required for each run are tabulated b 3 should both be clean, dry, labelled 150 mm test tu nto test tubes A and B using the calibrated automatic pipets at the bac for each run are tabulated below. Test Tube A and Test Tube dry, labelled 150 mm...
A) Prepare 50 mL of a NaCI solution containing 1 ppm Na. - first prepare 250 mL of a 500 ppm Na solution in a 250 mL volumetric flask - dilute 1/500 to create 50 mL of 1 ppm Na solution in a 50 mL volumetric flask - you can check your calculations with the instructor before making the solution
A) Prepare 50 mL of a NaCI solution containing 1 ppm Na. - first prepare 250 mL of a 500...
Germinating corn at 22°C ml of 02 consumed Germinating corn at 12°C D Nongerminating corn at 22°C Nongerminating corn - at 12°C Time (minutes) 1. Which of the following is a true statement based on the data? a. The amount of oxygen consumed by germinating corn at 22°C is appr twice the amount of oxygen consumed by germinating corn at 12°C. b. The rate of oxygen consumption is the same in both germinating and nongerminating corn during the initial time...
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