A chemistry graduate student is studying the rate of this reaction: 2NH3 (g) → N2 (g) + 3H, (g) He fills a reaction vessel with NH, and measures its concentration as the reaction proceeds: time [NH,] (seconds) 0.100 M 10. 0.0637 M 20. 0.0406 M 30. 0.0258 M 40. 0.0165 M Use this data to answer the following questions. rate = k I Write the rate law for this reaction. Calculate the value of the rate constant k.

A chemistry graduate student is studying the rate of this reaction: 2NH3 (g) → N2 (g) + 3H, (g) He fills a reaction vessel with NH, and measures its concentration as the reaction proceeds: time [NH,] (seconds) 0.100 M 10. 0.0637 M 20. 0.0406 M 30. 0.0258 M 40. 0.0165 M Use this data to answer the following questions. rate = k I Write the rate law for this reaction. Calculate the value of the rate constant k.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

Study the reactions. I. N2 (g) + O2(g) → 2NO(g) II. CO(g) + 02(g) → 2CO2 (g) III. Na(s) + HCI(1) → 2NACI(aq) + H2(g) What factor would only affect the rate of the third reaction? the pressure of the reactants the temperature of the reactants the concentration of the reactants the surface area of the reactants
A flask is charged with 0.140 mol of A and allowed to react to form B according to the following hypothetical gas-phase reaction. A(g) → B(g) The following data are collected. Os 0 40 S 0.072 80 s 0.025 120 s 0.014 (a) Calculate the number of moles of B at each time in the table. 160 s 0.013 0 - 40 s 0.0018 40 - 80 s 0.000625 80 - 120 s 0.00035 120 - 160 mol/s 0.000325 times (s) mol mol x mol x mol moles of A X mol mol/s mol/s 0 (b) Calculate the average rate of disappearance of A for each 40 s interval, in units of mol/s. mol/s 40 mol/s 80 120 0.140 0.068 0.043 0.029 160 0.016
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
O KINETICS AND EQUILIBRIUM Deducing a rate law from initial reaction rate data Some measurements of the initial rate of a certain reaction are given in the table below. H, I, initial rate of reaction 0.735 M 0.260 M 78.0M/s 0.735 M 0.341 M 102. M/s 0.354 M 0.260 M 37.6M/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. Do rate = k| x10 k = Explanation Check © 2021 McGraw-Hill Educat II
Chemical reactions all occur at the same rate. O True O False
Can you help me correcting this questions in the picture with the notes below please? Notes: In question 1a, the rate law is fine but should have partial pressures, not concentrations. In 1b, the units of the answer are incorrect; they should have "atm" in it. Hint: in the denominator of the calculation is atm^3.
Consider the reaction: H2 (g) +I2 (g) → 2 HI (g) A chemist performed an experiment and monitored the concentration of I2 during the course of the reaction. The red line in the graph below represents the results obtained. Which line in the plot would best represent how the concentration of HI changes during the course of the reaction? Time (s) Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a a b b d d е е Concentration (M)
Peroxynitric acid (HOONO2) is an unstable molecule that decomposes to nitric acid and oxygen: 2HOONO2(aq) → 2HNO3(aq) + O2(g)When the concentration of peroxynitic acid is graphed against time, the resulting plot is curved, but if the logarithm of this concentration is plotted, we instead get a straight line. Based on this, which statement is true? a) This decay is a second order in peroxynitric acid. b) The slope of the straight-line graph is the rate constant. c) One needs the concentration of peroxynitric acid to calculate its half-life. d) The rate law appears to be of the form -Δ[HOONO2]/Δt = k[HOONO2].
6. A student performs the reaction below in three experiments studying initial concentrations and initial rates. The data is summarized in the table below. SHOW ALL YOUR WORK. 2 NO(g) + Br₂(g) →2 NOBr(g) [NO] 0.80 1.60 0.80 [Br.] 0.60 0.60 1.20 Rate (mol/L.s) 0.14 0.28 0.56 a. What is the order of this reaction with respect to NO? b. What is the order of this reaction with respect to Br₂? c. What is the overall order of this reaction? d. What is the rate law constant, k, for this reaction? (Be sure to include the value and the units.)
What is the final temperature when a 5.0 g sample of brass initially at 25 °C absorbs 75 J of heat? The specific heat of brass is 0.38 J'g-1.°c-1. q = mcAT ОА. 64 °C ОВ.-14 °С ОС. 39°C O D. 31 °C
For the simple decomposition reaction: AB(g) A(g) + B(g), the rate = k{AB}? ({ = [) and k = 0.78 1/M•s. How long (in seconds) will it take for the concentration of AB to reach one-third of its initial concentration of 1.07? Enter to 2 decimal places.
Drawing on your everyday experiences, list one chemical reaction that is very slow (takes several days or weeks to complete) and one that is very fast (reactions that are over in minutes or seconds).