A gas decomposes to form O2 and two other products, in a first-order reaction, with rate constant k = 6.95 x 10 –4/s at 40oC. If the initial gas concentration = 4.80 x 10 –2 mol/L, what is the concentration (M) after 250 seconds have passed?
A gas decomposes to form O2 and two other products, in a first-order reaction, with rate...
1) Hydrogen peroxide, H2O2(aq), decomposes to H2O(l) and O2(g) in a reaction that is first order in H2O2 and has a rate constant k = 1.06×10−3 min−1 at a given temperature. How long will it take for 15% of a sample of H2O2 to decompose? 2)The decomposition of nitrogen dioxide, NO2, into nitrogen monoxide and oxygen at a high temperature is second-order in NO2. The rate constant for this reaction is 3.40 L/mol×min. Determine the time needed for the concentration...
At a fixed temperature, Sulfuryl chloride, SO2Cl2 gas decomposes to sulfur dioxide and chlorine gas in a first-order reaction, with the rate constant of 2.90 x 10-4 s-1. SO2Cl2 (g ) ⟶ SO2 (g) + Cl2 (g) 1.) If the initial C4H8 concentration is 0.225 M, what is the concentration after 900 s? 2.) Use the value of k to calculate the half-life of SO2Cl2 (g) in seconds. its SO2Cl not C4H8
26. Hydrogen peroxide decomposes into water and oxygen in a first-order process. H2O2(aq) → H2O(l) + 1/2 O2(g) 26. Hydrogen peroxide decomposes into water and oxygen in a first-order process. H2O2(aq) → H2O(2) + 1/2O2(g) At 20.0 °C, the half-life for the reaction is 3.05 x 104 seconds. If the initial concentration of hydrogen peroxide is 0.52 M, what is the concentration after 8.00 days?
A compound decomposes by a first order reaction. The concentration of the compound is 0.0250 M after 65 seconds when the initial concentration is 0.0350 M. What is the concentration of the compound after 1.47 minutes?
10 and 11 10. Nitrosyl chloride, NOCI, decomposes slowly to NO and Cl2, the reaction follows second order kinetics with a rate constant of 0.020 L mol-' s at a certain temperature. 2 NOCI (g) → 2 NO(g) + Cl2(g) If the initial concentration of NOCI in a closed reaction vessel is 0.050 M, what will be the concentration be after 30 minutes? 11. The reaction 2 NO2 (g) → 2 NO(g) + O2(g), is second order with respect to...
9,10,11 9. Consider the decomposition reaction of N2Os. 2 N203(g) → 4NO2(g) + O2(g) follows the first order kinetics with rate constant of 4.8 x 10's. (a) if the initial 165 x 10-2M what is the concentration at 825 s? (b) How long it will take for concentration is 1.65 x 10-2M what is the concentrat the concentration of N2Os to decrease to 1.00 x 10-2M? t 10. Nitrosyl chloride, NOCI, decomposes slowly to NO and Cl2, the reaction follows...
Compounds A and B are unstable and each decomposes by a first-order process. At 398 K, the rate constant for the decomposition of A is 3.6 X 10-5 s-1. Separate containers of A and B were prepared, with initial concentrations of 0.120 M A and 0.240 M B. After 5 hrs, it was found that the concentration of A was three times the concentration of B wwww What was the concentration of A after 5 hrs? 2) 1) What is...
The following chemical reaction: A → products shows first order kinetics with respect to A; rate = k[A]. If k = 6.78 x 10-5 s-1 and the initial concentration of A is 0.57 mol L-1, what is the half life of this reaction in hours?
Sucrose, a sugar, decomposes in acidic solution to produce glucose and fructose. The reaction is first order in sucrose, and at 25 °C the rate constant is k = 3.60 x 10-3-1. If the initial concentration of sucrose is 0.050 M, what is the concentration after 2 days? O 0.042M 4.3 x 10-3M O 0.028 M 0.013 M
Dinitrogen pentoxide decomposes in the gas phase to form nitrogen dioxide and oxygen gas. The reaction is first order in dinitrogen pentoxide and has a half-life of 2.81 h at 25 ?C . If a 1.7-L reaction vessel initially contains 760 torr of N2O5 at 25 ?C , what partial pressure of O2 is present in the vessel after 205 minutes?