Determine the mass in grams of each of the following:

a. 1.25 mol

b. 3.4 mol ()

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

|using the periodic tablewarm-upuse the periodic table in the tools bar to answer the following questions.what elemental classification does oxygen belongto? done

Aroom with dimensions 7.00m×8.00m×2.50m is to be filled with pure oxygen at 22.0∘c and 1.00 atm. the molar mass of oxygen is 32.0 g/mol. how many moles noxygen of oxygen are required to fill the room? what is the mass moxygen of this oxygen?