Final answer:
The student's question on the number of moles in 27 billion tons of CO2 cannot be answered with the given options, as the actual number of moles is 6.136 x 10^14, which is not listed among the choices.
Step-by-step explanation:
The student is asking how many moles of carbon dioxide (CO2) 27 billion tons represents. To find the answer, you would need to use the molar mass of CO2 and convert tons to grams. The molar mass of CO2 is approximately 44 grams per mole (g/mol). Therefore, you need to first convert 27 billion tons to grams:
- 1 ton = 1,000,000 grams
- 27 billion tons = 27 x 109 tons = 27 x 109 x 1,000,000 grams = 2.7 x 1016 grams of CO2
Next, divide the total grams by the molar mass of CO2 to find the number of moles:
2.7 x 1016 grams CO2 / 44 g/mol = 6.136 x 1014 moles of CO2
The correct answer is not listed among the options provided (a) 0.5 moles, (b) 1 mole, (c) 1.5 moles, (d) 2 moles since the number of moles of CO2 represented by 27 billion tons is vastly greater than any of the choices.