Under certain conditions the rate of this reaction is zero order in hydrogen iodide with a rate constant of 0.0045 M's : 2 HI (g) → H2 (g) + I,(g) Suppose a 250. mL flask is charged under these conditions with 350. mmol of hydrogen iodide. How much is left 80. s later? You may assume no other reaction is important. Be sure your answer has a unit symbol, if necessary, and round it to the correct number of significant digits.

Under certain conditions the rate of this reaction is zero order in hydrogen iodide with a rate constant of 0.0044 M's : 2 HI (g) - H, (g) +I, (g) Suppose a 3.0 L flask is charged under these conditions with 400. mmol of hydrogen iodide. How much is left 8.0 s later? You may assume no other reaction is important. Be sure your answer has a unit symbol, if necessary, and round it to 2 significant digits. x10

Consider this reaction: 2HI (g) → H, (g) +I, (g) At a certain temperature it obeys this rate law. rate =(0,465 s)[HI Suppose a vessel contains HI at a concentration of 0.540M. Calculate the concentration of HI in the vessel 2.80 seconds later. You may assume no other reaction is important. Round your answer to 2 significant digits.

I completed the problem but for some reason, my answer is still wrong. for part a I got 5.48 x 10^-5 and for part b I got 5.61x10^-4. I substituted the concentrations in the equation but hey still seem to be wrong can someone explain?

2 3 4 =5 #1 6 7 Under certain conditions the rate of this reaction is zero order in hydrogen iodide with a rate constant of 0.0040 M-s¹: 2 HI (g) → H₂(g) + 1₂ (g) Suppose a 5.0 L flask is charged under these conditions with 300. mmol of hydrogen iodide. How much is left 4.0 s later? You may assume no other reaction is important. Be sure your answer has a unit symbol, if necessary, and round it to 2 significant digits. S A S ? Continue Submit 00 X

Consider this reaction: 2H1 (g) → H₂(g) +1₂(e) At a certain temperature it obeys this rate law. rate = (0.345-¹) [HI] Suppose a vessel contains HI at a concentration of 0.730M. Calculate how long it takes for the concentration of HI to decrease by 86.0%. You may assume no other reaction is important. Round your answer to 2 significant digits. 0. 08

1 2 3 4 5 8 7 A chemical engineer is studying the rate of this reaction. NH OH(aq) →NH, (aq)+H,O(aq) He fills a reaction vessel with NH OH and measures its concentration as the reaction proceeds. Here's a graph of his data: t (s) Use this graph to answer the following questions: 발 pe here to search (W) [HO'HN] 6 H hp Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | 80°F Partly s

Under certain conditions the rate of this reaction is zero order in dinitrogen monoxide with a rate constant of 0.0086 M's : 2 N,0 (g) → 2 N2 (g) + 0, (g) Suppose a 300. mL flask is charged under these conditions with 100. mmol of dinitrogen monoxide. How much is left 10. s later? You may assume no other reaction is important. Be sure your answer has a unit symbol, if necessary, and round it to the correct number of significant digits. x10 미