A chemistry graduate student is studying the rate of this reaction: 2HI (g) → H, (g) +I,(g) He fills a reaction vessel with HI and measures its concentration as the reaction proceeds: time [HI] (milliseconds) 0.100 M 10. 0.0494 M 20. 0.0328 M 30. 0.0245 M 40. 0.0196 M Use this data to answer the following questions. Write the rate law for this reaction. rate = k ロロ Calculate the value of the rate constant k. k = Round your answer to 2 significant digits. Also be sure your answer has the correct unit symbol.

Some measurements of the initial rate of a certain reaction are given in the table below. [N] 0.815M1.56M N,|H||initial rate of reaction 185. M/s 141.M/s Use this information to write a rate law for this reaction, and calculate the value of the rate constant k. Round your value for the rate constant to 3 significant digits. Also be sure your answer has the correct unit symbol. 口 rate = 0 ロ || = 1 Explanation Check D2022 McGrny Hl LLC. Al Rights Reserved. Terms of N 回 至 五

T = Chemical reactions produce one or more product substances from one or more reactant substances. If x molecules of reactant X combine with y molecules of reactant Y to produce z molecules of product Z, we write xX+yY→ ZZ. The reaction rater is the rate of change of concentration of 1 dz 1 dX one of the products over time; for this example, r = 1 dy z dt x dt dY dt dX dt Nitrogen gas N₂ and hydrogen gas H₂ combine to produce ammonia NH3 according to dY dX dt 1N₂ + 3H₂ → 2NH3. Find r, and if ammonia is being produced at a rate of 5 moles dt per liter per hour. = esc T M Question Help: Message instructor Submit Question K 8366-SUMMER2023 / June 5- June 11 / Practice: Derivative mol Lh mol Lh → # C - $ y dt M % O Oll

The synthesis of ammonia obeys the following reaction: N2(g) + 3H2(g) → 2 NH3(g) What is the average reaction rate of H2(g) between the 2nd and the 9th hour. (Attention, the graph is in "hour" and we want a speed in "mole/L·s".) What is the instantaneous reaction rate of H2(g) at the 3rd hour. What is the reaction rate between the 2nd and the 9th hour.