Question

What is the formula mass of CuSo4?

Answer 1

Did you mean molar mass instead?

Explanation:

I'm not sure what the formula mass is, but I'm guessing that you are talking about molar mass.

To find the molar mass of `CuSO_4`, we must take all of the elements in the molecule, and add their molar masses together.

`Cu` or copper has a molar mass of `63.546 \ "g/mol"`.

`S` or sulfur has a molar mass of `32.065 \ "g/mol"`.

`O` or oxygen has a molar mass of `16 \ "g/mol"`. So, `O_4` would mean four oxygen atoms, and its molar mass would be `16*4=64 \ "g/mol"`.

Combining all the masses together, we get the molar mass of copper(II) sulfate `(CuSO_4)`, which will be

`63.546+64+32.065=159.611 \ "g/mol"`

So, we can round off that number to `1` decimal place, and so the mass becomes

`159.6 \ "g/mol"`.