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10. What is the mol fraction of cyclohexane in a mixture containing 15.0 g of toluene and 10.0 g cyclohexane. (Molecular mass of toluene = 92.14 g/mol and that of cyclohexane = 84.16 g/mol) 1). 0.12 2). 0.42 3). 0.58 4). 0.28 11. It is important to wear eye protection in the laboratory because: 1). it looks cool 2. to avoid eye injury 3). to meet the NY State mandate 4). to make it easy to follow the experiment

10. What is the mol fraction of cyclohexane in a mixture containing 15.0 g of toluene and 10.0 g cyclohexane. (Molecular mass of toluene = 92.14 g/mol and that of cyclohexane = 84.16 g/mol) 1). 0.12 2). 0.42 3). 0.58 4). 0.28 11. It is important to wear eye protection in the laboratory because: 1). it looks cool 2. to avoid eye injury 3). to meet the NY State mandate 4). to make it easy to follow the experiment

Chemistry
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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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10. What is the mol fraction of cyclohexane in a mixture containing 15.0 g of toluene and 10.0 g cyclohexane. (Molecular mass of toluene = 92.14 g/mol and that of cyclohexane = 84.16 g/mol) 1). 0.12 2). 0.42 3). 0.58 4). 0.28 11. It is important to wear eye protection in the laboratory because: 1). it looks cool 2. to avoid eye injury 3). to meet the NY State mandate 4). to make it easy to follow the experiment 12. Carefully study the graph below indicating the % composition of MeOH/H20 mixture with the x- axis showing the temperature in °C and the y-axis showing the volume of the mixture in mL. Fractional Distillation of 40 ml of MEOH / water mbture 12345 STESI0 2 is 1 17 19 20 21 22 23 a 25 2 27 2 29 SM The correct composition of the mixture is: 1). 30 % MeOH and 70 % Water 2). 50 % MeOH and 50 % Water 3). 20 % MeOH and 80 % Water 4). 70 % MeOH and 30 % Water
Transcribed Image Text:10. What is the mol fraction of cyclohexane in a mixture containing 15.0 g of toluene and 10.0 g cyclohexane. (Molecular mass of toluene = 92.14 g/mol and that of cyclohexane = 84.16 g/mol) 1). 0.12 2). 0.42 3). 0.58 4). 0.28 11. It is important to wear eye protection in the laboratory because: 1). it looks cool 2. to avoid eye injury 3). to meet the NY State mandate 4). to make it easy to follow the experiment 12. Carefully study the graph below indicating the % composition of MeOH/H20 mixture with the x- axis showing the temperature in °C and the y-axis showing the volume of the mixture in mL. Fractional Distillation of 40 ml of MEOH / water mbture 12345 STESI0 2 is 1 17 19 20 21 22 23 a 25 2 27 2 29 SM The correct composition of the mixture is: 1). 30 % MeOH and 70 % Water 2). 50 % MeOH and 50 % Water 3). 20 % MeOH and 80 % Water 4). 70 % MeOH and 30 % Water
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