Carbon dioxide (co2) 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 co2 in the atmosphere. carbon dioxide is also the end product of metabolism (see sample problem 3.4). using glucose as an example of food, calculate the annual human production ofco2ingrams, assuming that each person consumes 5.0×102g of glucose per day, that the world's population is 6.5 billion, and that there are 365 days in a year.

Explanation:

Glucose reacts with oxygen do produce carbon dioxide and water:

Given a daily mass of glucose:

Find moles of glucose:

From stoichiometry of this equation, moles of carbon dioxide can be found by multiplying this amount by 6:

Convert this into mass using the molar mass of carbon dioxide:

This is the mass of carbon dioxide per person per day. Multiply by the population and by the number of days to get the total mass:

it can be observed without changing the identity of the object.

it depends on what substance you're talking about as well as many other factors. in quantum mechanics, the observation of particles affects the observers ability to measure certain properties. for example: you can know the velocity of a particle, but you can't know it's position; or you can know it's position, but not it's velocity. it's like trying to find out where a grain of sand is by throwing other grains of sand at it. once you find out where it is, it's been moved. it's also like trying to find an answer to the question of whether or not a tree falling in a forest makes a sound if nobody is there to hear it. paradoxically, the only way to find out is to be there and hear it.