Respuesta :
Answer: Mass= n x molar mass= 4.00 moles x 120.4 g/mol = 482 g
Explanation:
number of moles = mass/ molar mass
Answer:
648 grams of epsom salt will be needed.
Explanation:
Mass of magnesium atom = 24 g/mol
Mass of sulfur atom= 32 g/mol
Mass of oxygen atom= 16 g/mol
Molar mass of epsom salt: [tex]24 g/mol+32 g/mol+4\times 16 g/mol=120 g/mol[/tex]
Moles of epsom salt in water = 5.40 mol
Mass of 5.40 moles of epsom salt : Molar mass × Moles:
=[tex]120 g/mol\times 5.40 mol=648 g[/tex]
648 grams of epsom salt will be needed.
