Question

Tricarbon octahydride is stored in large metal cylinders; each cylinder can hold 145 grams of the molecule. How many moles of tricarbon octahydride can fit inside one of these cylinders?

A. 5 moles
B. 6 moles
C. 7 moles
D. 8 moles

Answer 1

To calculate the number of moles of tricarbon octahydride that can fit inside one cylinder, we need to divide the given mass (145 grams) by the molar mass of tricarbon octahydride. The molar mass of tricarbon octahydride is the sum of the molar Approximately 3.8 moles of tricarbon octahydride can fit inside one cylinder.

Step-by-step explanation:

To calculate the number of moles of tricarbon octahydride that can fit inside one cylinder, we need to divide the given mass (145 grams) by the molar mass of tricarbon octahydride. The molar mass of tricarbon octahydride is the sum of the molar masses of three carbon atoms and eight hydrogen atoms has a molar mass of 12.01 grams/mol and hydrogen has a molar mass of 1.01 grams/mol.

So the molar mass of tricarbon octahydride is (3 * 12.01) + (8 * 1.01) = 38.03 grams/mol. Now, we can calculate the number of moles by dividing the mass by the molar mass: Number of moles = Mass / Molar mass = 145 grams / 38.03 grams/mol = 3.813 moles. Therefore, approximately 3.8 moles of tricarbon octahydride can fit inside one cylinder.