The progress of the reaction was followed by measuring the volume of gas produced at particular time intervals. The results are shown. FEB 9 Plot a suitable graph of these results. Label the axes. Time / s Volume of gas / cm³ 2 a b с d e f 0 0 40 27.5 50 70 32 36 39.5 80 42 100 120 a Explain why gases react together faster at higher pressure. 45 Calculate the initial rate of reaction by drawing a tangent. Show how you worked out your answer on the graph. Include the correct units. 45 Describe how the rate reaction changes with time and explain how you know this by referring to the line of the graph. Describe how to calculate the rate of reaction at 40 s. The mass of calcium carbonate used was 0.1875 g. The volume of 0.100 mol dm-³ hydrochloric acid used was 40 cm³. M, CaCO3 = 100.1 Demonstrate by calculation that the calcium carbonate was the limiting reagent. The concentration of hydrochloric acid was doubled. On your graph draw a line to show how the rate of reaction changes with time. [3] [3] [2] [2] [4] [2] [Total: 16] [2] [11

The progress of the reaction was followed by measuring the volume of gas produced at particular time intervals. The results are shown. FEB 9 Plot a suitable graph of these results. Label the axes. Time / s Volume of gas / cm³ 2 a b с d e f 0 0 40 27.5 50 70 32 36 39.5 80 42 100 120 a Explain why gases react together faster at higher pressure. 45 Calculate the initial rate of reaction by drawing a tangent. Show how you worked out your answer on the graph. Include the correct units. 45 Describe how the rate reaction changes with time and explain how you know this by referring to the line of the graph. Describe how to calculate the rate of reaction at 40 s. The mass of calcium carbonate used was 0.1875 g. The volume of 0.100 mol dm-³ hydrochloric acid used was 40 cm³. M, CaCO3 = 100.1 Demonstrate by calculation that the calcium carbonate was the limiting reagent. The concentration of hydrochloric acid was doubled. On your graph draw a line to show how the rate of reaction changes with time. [3] [3] [2] [2] [4] [2] [Total: 16] [2] [11

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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