Hi, for those who do not know do not talk Why this dirty racism in dealing with the Messenger Muhammad, may God bless him and grant him peace
If there is a pure heart, it is his heart
If there is a great then he is the greatest of the great
If there is a tolerant then he is the kindest of the forgiving

I do not know what to say, this is the least and despicable definition of it

But this is my opinionIn short, do not speak without you do not know

u r right friend but yeh qayamat ki nisani hai

this is seriously a problem here

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%

am i too late?

explanation: