Answer:
[tex]1.99393\times 10^{13}\ kg[/tex]
Explanation:
[tex]1\ petagram=10^{15}\ g[/tex]
[tex]\\\Rightarrow 5.438\ petagram=5.438\times 10^{15}\ g[/tex]
In kg
[tex]5.438\times 10^{15}\ g=\dfrac{5.438\times 10^{15}}{10^3}\\ =5.438\times 10^{12}\ kg[/tex]
12 grams of carbon is present in 44 grams of Carbon dioxide
[tex]\dfrac{44\times 5.438\times 10^{12}}{12}=1.99393\times 10^{13}\ kg[/tex]
The carbon mass is [tex]1.99393\times 10^{13}\ kg[/tex]
