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Carbon dioxide $\left(\mathrm{CO}_{2}\right)$ is the gas that is mainly responsible for global warming (the greenhouse effect). The burning of fossil fuels is a major cause of the increased concentration of $\mathrm{CO}_{2}$ in the atmosphere. Carbon dioxide is also the end product of metabolism (see Example 3.13 ). Using glucose as an example of food, calculate the annual human production of $\mathrm{CO}_{2}$ in grams, assuming that each person consumes $5.0 \times 10^{2} \mathrm{g}$ of glucose per day. The world's population is 7.2 billion, and there are 365 days in a year.

The annual human production of $\mathrm{CO}_{2}$ is $1.97 \cdot 10^{15} \mathrm{g}$

Chemistry 101

Chapter 3

Mass Relationships in Chemical Reactions

Chemical reactions and Stoichiometry

Rice University

Drexel University

University of Toronto

Lectures

04:02

A chemical reaction is a process that leads to the transformation of one set of chemical substances to another. Chemical reactions can be either spontaneous, requiring no input of energy, or non-spontaneous, typically following the input of some type of energy, such as heat, light or electricity. Chemical reactions are usually characterized by a chemical change, and they yield one or more products after the reaction is complete. Chemical reactions are described with chemical equations, which symbolically present the starting materials, end products, and sometimes intermediate products and reaction conditions. Chemical reactions happen at a characteristic reaction rate at a given temperature and chemical concentration. Typically, reaction rates increase with increasing temperature because there is more thermal energy available to reach the activation energy necessary for breaking bonds between atoms.

08:02

In chemistry, a combination reaction is a chemical reaction in which two or more reactants combine to form more than one product. In a decomposition reaction, one reactant splits into two or more products.

02:27

Carbon dioxide $\left(\mat…

05:40

02:56

09:23

Carbon dioxide, which is r…

04:40

Scientific evidence indica…

03:05

08:29

01:16

SCIENCE, TECHNOLOGY, AND S…

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Carbon dioxide contributes…

What we have given information is c 6 h, 12, o 6 plus 6, o 2 into 6 c, o 2 plus 6 h 2. O a person consumes 5.0 into 10 raised to the power to gram of glucose per daythewald. Population is 7.2 into 10 raised to the power 9 and the number of days in a year is 365. We hve to find the unwell human production of c o 2. First, we have to find the number of moles of glucose, the mass of glucose isis. Massive glucose is equal to daily glucose consumption. The junction into the world population inthe number of days in a year is equal to mesaglucose. We have daily glucose consumption is 5.0 into 10 raised to the power 2 gram into the wold population. We have 7.2 into 10 raised to the power 9 and to the number of days in a year is 365 is equal to 131.4 .3131.4 into 10 raised to the power 13 is mass of glucose. The molar mass of glucose is molar. Mass of glucose is equal to 6 into a mass of carbon plus 12 into molar. Mass of hydrogen in plus 6 into molar mass of oxygen is equal to 6 into molar. Mass of carbon is 12.011 gram per mole plus 12 into molar. Mass of hydrogen is 1.008 gram per mole, plus molar mass of hydrogen is 6 and oxygen 6 into 15.999 gram per mole, so the calculated molar mass of glucose is 180.156 gram per mole. Therefore, the number of moles of will case isos number of moles of glucose is equal to given mass of glucose divided by molar. Mass of glucose is equal to given mass of glucose is 131.4 into 10. Raise to the power 13 divided by the molar mass of glucose is 180.156. Gram per mole is equal to. We have 7.29 into 10 raised to the power 12 mole, so number of moles of g case is 7.29 into 10, raise to the power 12 mole and moll cos produces 6 moles of co 2. Hence 7.29 into 10, raised to the power 12 mole moles of glucose will produce 6.6 into 7.29 into 10. Raise to the power. 212 is equal to 43.74 into 10, raised to the power 12 moles of co 2. So the molar mass of c, o 2 isto is molar mass of c o 2 is equal to mass of carbon plus 2 into molarmass of oxygen is equal to 12.011 gram per mole plus 2 into 15.999. Gram per mole is equal to 44.009 gram per mole. Now we can calculate calculate the invelhuman production of c o 2 in drams, so mass mass of c o 2 is equal to number of moles of co. Twont molar mass of c o 2 is equal to a number of moles of c. O 2 is 43.74 into molar. Mass of into 10, raise to power to mole into molar mass of c o 2 is 44.009. Gram per mole is equal to 1.97 into 10 raised to the power 15. So the final result is the human wall. Humanof c 2. Is 1.97 into 10 raise to the power 15 grams?

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