Question

What is the mass of 7.50 moles of sulfur dloxide (`SO_2`)?

Answer 1

Well, sulfur dioxide has a molar mass `64.07*g*mol^-1`......

Explanation:

And to get the mass of `7.5*mol` we simply multiply `"number of moles"` `xx` `"molar mass"`, i.e.

`7.50*cancel(mol)xx64.07*g*cancel(mol^-1)=??g`