Hello, Could someone please help me with my lab calculations?

Hello,

Could someone please help me with my lab calculations? I am having a very hard time trying to figure out how I can do this right. I cannot upload PDF files on here but I would be able to send all of the work I have done so far (including highlighted areas and comments with what I don't understand) as well as the Results and Calculations requirements from my lab manual by e-mail, if possible.

Any help is very much appreciated!

Thank you,

Mel