At a certain temperature the rate of this reaction is second order in NH, with a rate constant of 22.3 M¯'s: 2NH, (g) → N, (g) +3H, (g) Suppose a vessel contains NH, at a concentration of 1.29M. Calculate how long it takes for the concentration of NH, to decrease to 0.310M. You may assume no other reaction is important. Round your answer to 2 significant digits.

5. You studied the chemical reaction, 2NO2(g) → 2NO(g) + O2(g), at 25°C by monitoring the concentration of NO2(g) as a function of time and constructed the following graph. y= 0.5408x + 125.0 R2=0.998 Time (s) What is the rate constant for this reaction at 25°C? Include the proper units. (W/T) [(3)ONI/T

At a certain temperature the rate of this reaction is second order in NH OH with a rate constant of 0.0123 M¹s¹: NH,OH (aq) → NH, (aq)+H,O(aq) Suppose a vessel contains NH OH at a concentration of 0.690 M. Calculate the concentration of NH OH in the vessel 790. seconds later. You may assume no other reaction is important. Round your answer to 2 significant digits. X

Consider this reaction: 2SO3 (g) →2SO₂(g) + O₂(g) At a certain temperature it obeys this rate law. rate = (0.894 M¹-s¹) [S0₂] Suppose a vessel contains SO3 at a concentration of 0.390 M. Calculate the concentration of SO3 in the vessel 8.60 seconds later. You may assume no other reaction is important. Round your answer to 2 significant digits. M Explanation Check 0 10 Q Search a Ⓒ2023 McGraw Hill LLC. All Rights Reserved. Terms of Use O Privacy Center

Consider this reaction: 2NH, (g) - N2 (g) +3H, (g) At a certain temperature it obeys this rate law. rate =(0.0103 s")[NH,] S Suppose a vessel contains NH, at a concentration of 0.170M. Calculate the concentration of NH, in the vessel 68.0 seconds later. You may assume no other reaction is important. Round your answer to 2 significant digits. OM x10

At a certain temperature the rate of this reaction is second order in H₂CO3 with a rate constant of 2.75Ms H₂CO3(aq) → H₂O (aq) + CO₂ (aq) Suppose a vessel contains H₂CO3 at a concentration of 0.130M. Calculate how long it takes for the concentration of H₂CO3 to decrease to 0.0286 M. You may assume no other reaction is important. Round your answer to 2 significant digits. X ? S

Consider this reaction: 2C1,0, g) → 2C1, (6) + 50, (g) At a certain temperature it obeys this rate law. rate = (0.36 Ms)[C1,0,1 %3D Suppose a vessel contains Cl,0, at a concentration of 0.630 M. Calculate how long it takes for the concentration of Cl,0, to decrease to 5.0% of its initial value. You may assume no other reaction is important. Round your answer to 2 significant digits.

At a certain temperature this reaction follows second-order kinetics with a rate constant of 1.0M 2NH, (g) - N, (2) + 3H, (g) Suppose a vessel contains NH, at a concentration of 1.07M. Calculate how long it takes for the concentration of NH, to decrease by 91.%. You may assume no other reaction is important. Round your answer to 2 significant digits.

The decomposition of N,0, can be described by the equation 2N,0,(soln) – 4 NO,(soln) + 0,(g) Consider the data in the table for the reaction at 45 "C in carbon tetrachloride solution. t (8) IN3Ogl (M) 1.934 175 1.732 446 1.461 825 1.151 Given the data, calculate the average rate of reaction for each successive time interval. What is the average rate of reaction for the time interval from 0 s to 175 s? average rate of reaction: M/s What is the average rate of reaction for the time interval from 175 s to 446 s? average rate of reaction: M/s What is the average rate of reaction for the time interval from 446 s to 825 s? average rate of reaction: M/s

Consider this reaction: 2SO3 (g) →2SO₂ (g) + 0₂ (8) At a certain temperature it obeys this rate law. rate= (0.00626 s¹)[03] Suppose a vessel contains SO3 at a concentration of 0.250M. Calculate the concentration of SO3 in the vessel 99.0 seconds later. You may assume no other reaction is important. Round your answer to 2 significant digits. M x10 X Ś