What mass of carbon dioxide,C O₂,contains the same number of molecules as 3.00 g of trichlorofluoromethane,CCl₃F?

Question

Quizplus · Accepted Answer

To find the mass of carbon dioxide that contains the same number of molecules as 3.00 g of trichlorofluoromethane, we first need to calculate the number of molecules in 3.00 g of trichlorofluoromethane.

1 mole of trichlorofluoromethane (CCl3F) weighs 137.37 g and contains Avogadro's constant (6.022 x 10^23) of molecules. Therefore, the number of molecules in 3.00 g of trichlorofluoromethane can be calculated as:
(3.00 g) / (137.37 g/mol) x (6.022 x 10^23 molecules/mol) = 8.27 x 10^21 molecules

Now, we need to find the mass of carbon dioxide that contains the same number of molecules. One mole of carbon dioxide (CO2) contains Avogadro's constant of molecules. So, the mass of CO2 with the same number of molecules as trichlorofluoromethane can be calculated as:
(8.27 x 10^21 molecules) / (6.022 x 10^23 molecules/mol) x (44.01 g/mol) = 0.961 g

Therefore, the best choice is B) 0.961 g.

What Mass of Carbon Dioxide,C O2,contains the Same Number of Molecules

What Mass of Carbon Dioxide,C O₂,contains the Same Number of Molecules