Im bored who else Lol

I am since I have no school today

well today i got cheated on by my girl

I treated her like a queen because i knew she was in an abusive relationship before me

and now she decides to get back with him without me knowing

so i listened to this song for 5 hours straight

Explanation:

Ayy, okay, ooh, okay, uh

Nice guys always finish last, should've known that

Gave you my heart and you fu**ed around and broke that

So sad, pretty girls'll hurt you so bad (So bad)

1. for the first question, we must find the mass of the anhydrous salt, mgso₄. the molar mass for mgso₄·7h₂o is 246.47 g/mol, while that of mgso₄ is 120.37 g/mol.7.834 g mgso₄·7h₂o * 1 mol mgso₄·7h₂o/246.47 g * 1 mol mgso₄/1 mol mgso₄·7h₂o * 20.37 g mgso₄/mol = 0.647 g mgso₄

2. mass of water = mass of sample - mass of anhydrous salemass of water = 7.834 - 0.647 = 7.19 gpercent water in hydrate = 7.19/7.834 * 100 = 91.74%