Someone please I’m begging you. 20 points
How many formula units of magnesium phosphate will be produced from 5, 8g sodium triphosphate? The equation is 2Na 3 PO 4 +3 Mg(NO 3 ) 2 Mg 3 (PO 4 ) 2 + 6 NaNO 3 .

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%

може ли да зареждате повече информация, моля

it's c (engineer's do their work with mechanical stuff not on any living being)