Topic: Measurements of Reaction RateAnswer the following questions.1) Which of the following is NOT a viable unit for a reaction rate? (a kilogram/secondb. time/dayc. Molarity/mind. Hours/seconde gram/second2) The rate of a reaction can be determined by measuring changes in the physical properties of the reactionmixture. Which of the following parameters is not typically monitored to obtain a measure of reaction rate?a. Temperatureb. Volumec. Colord. Cloudinesse. Mass3) What is the formula for calculating the rate of a reaction from the reaction time and the amount of productformed? (.)a. Rate of reaction = time/ amount of product formedb. Rate of reaction = amount of product formed X timec. Rate of reaction = time/ amount of product formed X 100%d. Rate of reaction = amount of product formed/time X 100%e. Rate of reaction = amount of product formed/timedoDate Completed: ..a. Bb. A, B, and D4) Shown in the diagram is the experimental apparatus used to identify theend-point of a reaction from changes in turbidity. The average reaction rate isdetermined by measuring the time taken for the cross to be obscured by theproduct suspension.a. The cross is not viewed through glass, which would reduce its visibility by refracting light.b. The cross is not viewed through glass, which would reduce its visibility by adhering to the solid product.c. The cross is viewed through a constant depth of liquid.d. The cross is viewed over the largest possible area.e. The cross is viewed through a minimum depth of liquid.5) In a rate of reaction experimentbetween lumps of calcium carbonateand hydrochloric acid, what methodor methods could you use to speedup the rate of reaction?c. Dd. B, D, and Ee. B and DWhen monitoring changes in turbidity, the cross must be viewed from directlyabove. How does this approach help to ensure that the experiment is repeatable?MethodUse largerlumps ofcalciumcarbonateBHeatup theacidCooldownthe acidDAdd acatalystUse a pestle anda mortar on thecalciumcarbonate

To select the unit which can not be used to measure the rate of the reaction. “Since you have…

1) Which of the following is NOT a viable unit for a reaction rate? ( a kilogram/second b. time/day c. Molarity/min d. Hours/second e. gram/second 2) The rate of a reaction can be determined by measuring changes in the physical properties of the reaction mixture. Which of the following parameters is not typically monitored to obtain a measure of reaction rate? a. Temperature b. Volume c. Color d. Cloudiness e. Mass 3) What is the formula for calculating the rate of a reaction from the reaction time and the amount of product formed? ( > a. Rate of reaction time/ amount of product formed b. Rate of reaction = amount of product formed X time c. Rate of reaction time/ amount of product formed X 100% d. Rate of reaction = amount of product formed/time X 100% e. Rate of reaction = amount of product formed/time

1) Which of the following is NOT a viable unit for a reaction rate? ( a kilogram/second b. time/day c. Molarity/min d. Hours/second e. gram/second 2) The rate of a reaction can be determined by measuring changes in the physical properties of the reaction mixture. Which of the following parameters is not typically monitored to obtain a measure of reaction rate? a. Temperature b. Volume c. Color d. Cloudiness e. Mass 3) What is the formula for calculating the rate of a reaction from the reaction time and the amount of product formed? ( > a. Rate of reaction time/ amount of product formed b. Rate of reaction = amount of product formed X time c. Rate of reaction time/ amount of product formed X 100% d. Rate of reaction = amount of product formed/time X 100% e. Rate of reaction = amount of product formed/time

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...

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Catalysts play an important role in many reactions. Check all of the true statements. A. Any catalyst will speed up any reaction. B. Catalysts can be in the same phase or a different phase as the reactants. C. A catalyst can change the mechanism of a reaction. D. A catalyst is consumed in a chemical reaction.
a. Calculate the average rate of the reaction A to B from the start of the reaction to the 10th sec. b. Calculate the average rate of the reaction A to B between 10th sec and 20th sec. c. Which of the following statements about the reaction A B must correct?A. [A] = 0.025 M when time = 30 sec.B. At the end of reaction, [B] = 0.20 M.C. The rate of reaction decreases with time.D. [A] = [B] when time = 10 sec.
14. Why does the rate of the reaction decrease over time? A. Exothermic reactions lose heat which cools the reaction which decreases the reaction rate. B. As the reaction proceeds, the concentration of the products results in fewer collisions. C. As the reaction proceeds, a decrease in the concentration of reactants results in fewer successful collisions. D. Not all molecules will react and some choose to stay in their present form. E. none of the above
Consider the following mechanism: NO → N + O O + O3 → 2 O2 O2 + N → NO2 What is the role of O2? A. product only B. intermediate only C. Both intermediate and product D. reactant E. catalyst
Which one of the following factors does not affect the specific rate constant of a chemical reaction? A. Arrhenius probability factor B. Amounts of reactants C. Temperature D. The presence of a catalyst E. Activation barrier
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