Final answer:
There are approximately 55.85 grams in 1.2 x 10²⁴ molecules of CO.
Step-by-step explanation:
To determine the number of grams in 1.2 x 10²⁴ molecules of CO, we need to use the concept of molar mass and Avogadro's number.
1. Start by finding the molar mass of CO. The molar mass of carbon (C) is approximately 12.01 grams per mole, and the molar mass of oxygen (O) is approximately 16.00 grams per mole.
Therefore, the molar mass of CO is:
12.01 g/mol (C) + 16.00 g/mol (O) = 28.01 g/mol (CO)
2. Now, we can use Avogadro's number, which is approximately 6.022 x 10²³ molecules per mole. We have 1.2 x 10²⁴ molecules of CO.
Let's calculate the number of moles:
(1.2 x 10²⁴ molecules) / (6.022 x 10²³ molecules/mol) = 1.991 moles (approximately)
3. Finally, we can calculate the number of grams by multiplying the number of moles by the molar mass:
1.991 moles (CO) x 28.01 g/mol (CO) = 55.85 grams (approximately)
Therefore, there are approximately 55.85 grams in 1.2 x 10²⁴ molecules of CO.