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Well you don't state temp or pressure, so we can only assume STP conditions. At STP 1 mole will = 22.4 litres. Therefore there will be 0.044643 moles (1/22.4) here. This is multiplied by 44 (molecular weight of CO2) to give 1.9643 grams

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Hydrogen fuel cells combine hydrogen and oxygen to produce water and energy Assume 1 kg of fuel is used and the mass of the water produced is 1.10 x 10-11 kg How much energy is produced by this fuel?

The energy produced by the fuel can be calculated using the energy equivalence of mass via the formula E=mc^2, where E is energy, m is mass, and c is the speed of light. Given that the mass of the water produced is 1.10 x 10^-11 kg, substituting this value into the formula will provide the energy produced from the fuel.


How much co2 does fossil fuels give off?

Burning fossil fuels releases carbon dioxide (CO2) into the atmosphere. The amount of CO2 emitted depends on the type of fossil fuel and how it is burned, but on average, burning one gallon of gasoline produces around 20 pounds of CO2. This is a major contributor to the greenhouse effect and global warming.


How much carbon dioxide does a car produce per kilometer?

This depends upon the vehicle. A Hummer H2 averages 4.25 to 5.1 km per liter. An all electric vehicle powered by solar charged batteries emits virtually no CO2 at all. In the US cars only recently topped 10 km/liter. Since a liter of fuel emits 1.68 kg of CO2, a tenth of that is 0.17 kg of CO2 per kilometer. 0.17 kg/km translates to 0.6 lbs per mile, for those following along in the US.


Why is carbon dioxide a waste gas?

Carbon dioxide is considered a waste gas because it is produced as a byproduct of cellular respiration in living organisms and combustion processes. It is constantly being produced in these processes and must be expelled from the body or environment to prevent an accumulation that can be harmful.


How much does 1 liter of bromine weigh?

One liter of bromine weighs approximately 3.10 kg.