Question 24 of 75 What amount of time is required for the concentration of A to decrease from 0.800 M to 0.215 M in the zero-order reaction A → B? (k = 0.0567 M*s¹) 1 2 3 5 6 8 9 st 4 7 +/- O S Submit Ox x 100
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- For the reduction 2FeCl3 + SnCl2 =====➔ 2 FeCl2 + SnCl4 in aqueous solution the following data were obtained at 25oC t(min) 1 3 7 11 40 Y 0.01434 0.02664 0.03612 0.04102 0.05058 Where y is the amount of FeCl3 reacted in moles per liter. The initial concentrations of SnCl3 and FeCl3 were respectively, 0.03125, 0.0625 moles/L. a.)Show that the reaction is third order (derive the rate law), and b.) calculate the average specific rate constant.Given Zn(s)| Zn 2+ (aq) (1M) || Ag+2+ (aq) (1M) | Ag (s) Eocell = 1.562V What will the Ecell be if the [Zn2+] = 0.75M and [Ag+] =0.25 M at 40.00oC (313.15K)? The overall reaction is Zn(s) + 2 Ag+ (aq) --> 2 Ag (s) + Zn 2+ (aq) (Answer has 3 digits after the decimal)Consider an urban atmosphere containing 100 ppbv NOx and 100 ppbv O3 with T=298K and P=1 atm. NO + O3 --> NO2 + O2 (1) NO2 + hv --> NO + O3 (in the presence of O2) (2) With k1=2.2x10-12 exp(-1430/T) cm3 molecule-1s-1 and k2=1x10-2 s-1 (ie, at noon). Calculate the steady-state concentration of NO and NO2 at noon based on the above reactions.
- The slope of an Arrhenius plot was found to be -4570 K, and the intercept was found to be 3.3 with the time plotted in seconds. What is the frequency factor? Enter your answer with two sig figs.The global emissions of methane have been estimated to be near 9,390 million metric tons of CO2 equivalent, assuming there is a GWP of 25. Calculate the residence of methane in the atmosphere. If the concentration of methane in the atmosphere is 1.55 ppmv. Can an expert, please show me how to solve the question above?Consider the reaction A(g) + 2B(g) → 2C(g) + 2D(g) and associated that was collected at a constant temperature. Trial Initial [A] Initial [B] Initial Rate (mol/L) (mol/L) (mol/(L·min)) 1 0.125 0.200 7.25 2 0.375 0.200 21.75 3 0.250 0.400 14.50 4 0.375 0.400 21.75
- Determine the average rate of change of BB from ?=0 st=0 s to ?=272 s.t=272 s. A⟶2BA⟶2B Time (s) Concentration of A (M) 0 0.7300.730 136136 0.4450.445 272272 0.1600.160 rateB= __________M/sInstantaneous rates for the reaction of hydroxide ion with Cv+ can be determined from the slope of the curve in Figure 11.3 at various concentrations. They are (1) At 4.0 105 mol/L, rate = 12.3 107 mol L1 s1 (2) At 3.0 105 mol/L, rate = 9.25 107 mol L1 s1 (3) At 2.0 105 mol/L, rate = 6.16 107 mol L1 s1 (4) At 1.5 105 mol/L, rate = 4.60 107 mol L1 s1 (5) At 1.0 105 mol/L, rate = 3.09 107 mol L1 s1 (a) What is the relationship between the rates in (1) and (3)? Between (2) and (4)? Between (3) and (5)? (b) What is the relationship between the concentrations in each of these cases? (c) Is the rate of the reaction proportional to the concentration of Cv+? Explain your answer.The atomic hydrogen exists in space at an estimated concentration of one particle per cubic meter. If the collision diameter is 2.5 ×10^(–10) meter and the temperature is 2.7 Kelvin, how many kilometers away will the next potential collision be?
- For the 2° reaction H2(g) + I2(g) → 2HI(g) at 650 K, the collisional cross section, sigma H2-I2, is 0.36 nm2, the reducedmass is 3.32 × 10−27 kg, and the activation energy is 171 kJ mol−1. Use collision theory to calculate the rateconstant. If the actual value of the rate constant is 8.4 × 10−6 M-1s-1, determine the steric factor for this reaction.The diffusivity of iron atoms in the BCC atoms in the BCC Fe lattice is 4.2*10-23m2/sec at 400oC and 5.6*10-16m2/sec at 800oC. Calculate the activation energy in kilojoules per mole for the diffusion of iron atoms in the BCC Fe lattice in the temperature range.(upto two decimal places)Reducing NO Emissions Adding NH3 to the stack gases at an electric power generating plant can reduceNOx emissions. This selective noncatalytic reduction (SNR) process depends on the reaction between NH3 (an odd-electron compound) and NO.$$4NH3(g)+6NO(g)5N2(g)+6H2O(g)The following kinetic data were collected at 1200 K. Experiment [NH3] (M) [NO] (M) Rate (M/s) 1 1.00x10-5 1.00x10-5 0.120 2 2.00x10-5 1.00x10-5 0.240 3 2.00x10-5 1.50x10-5 0.360 4 2.50x10-5 1.50x10-5 0.450 What is the rate-law expression for the reaction? Do not add multiplication symbols to your answer. $$Rate=
