Question

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

Answer 1

Answer:

2,0894x10¹² tonnes of CO₂ in atmosphere

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:

$\frac{405mg CO_2}{1kg atmosphere} * 5,1480x10^{18} kg Atmosphere = 2,0849x10^{21}mg CO_2$

In tonnes:

$2,0849x10^{21}mg CO_2 * \frac{1kg}{1x10^{6} mg} * \frac{1 tonne}{1000 kg} =$ 2,0894x10¹² tonnes of CO₂ in atmosphere

I hope it helps!