Final answer:
To determine the amount of moles in a substance, use the formula Mass / Molar mass. In this case, there are approximately 4.69 moles in 150 grams of O2.
Step-by-step explanation:
In order to determine the amount of moles in a given substance, you need to use the formula:
No. of moles = Mass / Molar mass The molar mass of O2 is 32 g/mol. So, to determine the amount of moles in 150 grams of O2, you divide 150 grams by the molar mass:
No. of moles = 150 g / 32 g/mol = 4.69 moles Therefore, there are approximately 4.69 moles in 150 grams of O2.
Learn more about Moles in Chemistry