Question

calculate the tonnes of co2 in the atmosphere. use the current co2 concentration of 405 ppm. Answer as tonnes as carbon.

Answer 1

2,0894x10¹² tonnes of CO₂ in atmosphere

Step-by-step explanation:

The total mean mass of the atmosphere is 5.1480×10¹⁸ kg. CO₂ is an important race gas in Earth's atmosphere because it is part of the carbon cycle.

405 ppm of CO₂ in atmosphere means 405 mg of CO₂ per kg of atmosphere. If the mass of the atmosphere is 5.1480×10¹⁸ kg:

`(405mg CO_2)/(1kg atmosphere) * 5,1480x10^(18) kg Atmosphere = 2,0849x10^(21)mg CO_2`

In tonnes:

`2,0849x10^(21)mg CO_2 * (1kg)/(1x10^(6) mg) * (1 tonne)/(1000 kg) =` 2,0894x10¹² tonnes of CO₂ in atmosphere

I hope it helps!