The first order decomposition of HI(g) at a given temperature has a half-life of 5.453 x 101 seconds.
What is the rate constant for HI(g)?
The first order decomposition of HI(g) at a given temperature has a half-life of 5.453 x...
How do you calculate the half life for this reaction? The first-order reaction of decomposition of azomethane is given below: At a certain temperature, the rate constant for this reaction equals 3.05 X 10^-3 s^-1. Calculate the half-life of this reaction (in seconds) at the same temperature.
3. The half-life for the first order decomposition of N2O3(g) is 6.00 104 s1 at 20 °C. a) Calculate the rate constant, k, at this temperature. b) What percentage of the N2Os molecules will have reacted after one hour?
1. At 803 K the first order decomposition of chloroethane, CH3CH2CC2H4+HCI, has a half-life of 60.8 seconds. a)Find the rate constant b)Find the time it takes for 13% of the chloroethane to decay.
Question 6 (18 marks) (a) Given that the rate constant k for the first-order decomposition of compound X is 2.65 x 10-9 s', calculate the percentage of compound X that has decomposed in the first 2250 seconds after the reaction begins. (4 marks) (b) Consider the first order reaction: W2 → 2 Y. If [W2]=0.8 M initially and 0.17 M after 160 seconds, what will [W2] be after 350 seconds? (4 marks) (c) Data for the reaction 3A + 5B...
The half-life for the second-order decomposition of HI is 15.4 5 when the initial concentration of His 0.67 M. What is the rate constant for this reaction? TT T Arial V3 (12pt) T-E- E- 225
The decomposition of dimethylether at 504o C is first order with a half-life of 1570 seconds. What fraction of initial amount of dimethylether remains after 4710 seconds
The decomposition of phosphine is a first order process with a half life of 37.9 s. What is the rate constant for this reaction? 0.0264 s-1 0.0381 s-1 0.0183 s-1 54.7 s-1 26.3 s-1
2. Answer the following questions by connecting the half-life of each first-order reaction to the rate constant. a. The rate constant of a first-order reaction is 2.43 × 10–2 min–1. What is the half-life of the reaction? (2 points) b. A first-order reaction has a rate constant of 0.547 min-1. How long will it take a reactant concentration 0.14 M to decrease to 0.07 M? (2 points) c. The half-life of a first-order reaction is 5.47 min. What is the...
The first-order decomposition of hydrogen peroxide has a half-life of 10.7 h at 20°C. a. What is the rate constant (expressed in hr−1) for this reaction? _____________ Write answer to three significant figures and NO UNITS in answer. b. If you started with a solution that was 7.5 × 10−3 M H2O2, what would be the concentration of H2O2 after 3.3 h? __________
*AT (5 marks) At a given temperature, the half-life for the decomposition of a sample of gaseous acetaldehyde initially at 363 Torr was 410 s. When the pressure was 248 Torr, the half-life was 880 s. Using the equation above, determine the order of the reaction. The acetaldehyde gas is an ideal gas