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 for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter11: Chemical Kinetics

Section: Chapter Questions

Problem 11.99PAE: Substances that poison a catalyst pose a major concern for many engineering designs, including those...

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Similar questions

. Account for the increase in reaction rate brought about by a catalyst.
use the kineticmolecular theory to explain why an increase in temperature increases reaction rate.
Explain what is meant by the average rate of a reaction.
If a textbook defined a catalyst as "a substance that increases the rate of a reaction," would that definition be adequate?
Based on the diagram in Exercise 12.83, which of the reactions has the fastest rate? Which has the slowest rate?
Substances that poison a catalyst pose a major concern for many engineering designs, including those for catalytic converters. One design option is to add materials that react with potential poisons before they reach the catalyst. Among the commonly encountered catalyst poisons are silicon and phosphorus, which typically form phosphate or silicate ions in the oxidizing environment of an engine. Group 2 elements are added to the catalyst to react with these contaminants before they reach the working portion of the catalytic converter. If estimates show that a catalytic converter will be exposed to 625 g of silicon during its lifetime, what mass of beryllium would need to be included in the design?
How does an increase in temperature affect rate of reaction? Explain this effect in terms of the collision theory of the reaction rate.
How do chemists envision reactions taking place in terms of the collision model for reactions? Give an example of a simple reaction and how you might envision the reaction’s taking place by means of a collision between the molecules.
Consider the following statements: In general, the rate of a chemical reaction increases a bit at first because it takes a while for the reaction to get warmed up. After that, however, the rate of the reaction decreases because its rate is dependent on the concentrations of the reactants, and these are decreasing. Indicate everything that is correct in these statements, and indicate everything that is incorrect. Correct the incorrect statements and explain.
Based on the diagrams in Exercise 12.83, which of the reactions has the fastest rate? Which has the slowest rate?