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51 Caffeine Caffeine, found in coffee, tea, chocolate, cola beverages is a highly popular stimulant that could be toxic in overdose (more thar 600 mg per day). Its chemical formula is CSH10N O2. Questions: 1- Calculate the molar mass of caffeine. 2- Determine the percentage by mass of the different chemical elements composing caffeine. 3- Calculate the number of moles of caffeine in a cup of cofe containing 80 mg of caffeine. Determine the number of cafen molecules found in this cup. 4- Determine the number of cups of coffee that one can drink per da 5- Decaffeinated whole or ground coffee should not contain morr without intoxication hazard. than 0.1% caffeine by mass. Determine the maximum number 42

51 Caffeine Caffeine, found in coffee, tea, chocolate, cola beverages is a highly popular stimulant that could be toxic in overdose (more thar 600 mg per day). Its chemical formula is CSH10N O2. Questions: 1- Calculate the molar mass of caffeine. 2- Determine the percentage by mass of the different chemical elements composing caffeine. 3- Calculate the number of moles of caffeine in a cup of cofe containing 80 mg of caffeine. Determine the number of cafen molecules found in this cup. 4- Determine the number of cups of coffee that one can drink per da 5- Decaffeinated whole or ground coffee should not contain morr without intoxication hazard. than 0.1% caffeine by mass. Determine the maximum number 42

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
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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Please solve numbers 4 and 5
3- Calculate the number of moles of caffeine in a cup of cofe 5- Decaffeinated whole or ground coffee should not contain mort than 0.1% caffeine by mass. Determine the maximum number 4- Determine the number of cups of coffee that one can drink per day * 61% 1:46 PM Tue Mar 30 51 Caffeine Caffeine, found in coffee, tea, chocolate, cola beverages is a highly popular stimulant that could be toxic in overdose (more tha 600 mg per day). Its chemical formula is C3H10N4O2. Questions: 1- Calculate the molar mass of caffeine. 2- Determine the percentage by mass of the different chem elements composing caffeine. containing 80 mg of caffeine, Determine the number of ce molecules found in this cup. without intoxication hazard. 42
Transcribed Image Text:3- Calculate the number of moles of caffeine in a cup of cofe 5- Decaffeinated whole or ground coffee should not contain mort than 0.1% caffeine by mass. Determine the maximum number 4- Determine the number of cups of coffee that one can drink per day * 61% 1:46 PM Tue Mar 30 51 Caffeine Caffeine, found in coffee, tea, chocolate, cola beverages is a highly popular stimulant that could be toxic in overdose (more tha 600 mg per day). Its chemical formula is C3H10N4O2. Questions: 1- Calculate the molar mass of caffeine. 2- Determine the percentage by mass of the different chem elements composing caffeine. containing 80 mg of caffeine, Determine the number of ce molecules found in this cup. without intoxication hazard. 42
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