The compound mgso4, epsom salts, is used to soothe sore feet and muscles. how many grams will you need to prepare a bath containing 5.40 mol of epsom salts?

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:

Moles of epsom salt in water = 5.40 mol

Mass of 5.40 moles of  epsom salt : Molar mass × Moles:

=

648 grams of epsom salt will be needed.