Calculate the mass of 2.50 moles of mgso4

301 g

Step-by-step explanation:

Step 1. Calculate the molar mass of MgSO₄

1 Mg  =   24.30

1 S     =   32.06

4 O   =  64.00

Total = 120.37 g/mol

Step 2. Calculate the mass of MgSO₄

Mass of MgSO₄ = 2.50 mol MgSO₄ × (120.37 g MgSO₄l/1 mol MgSO₄)

                          = 301 g MgSO₄

explanation: it gains negative electrons, therefore becoming negatively charged. as charge cannot be created, nor destroyed, only transferred, this leaves the wool positive. now that they have opposite charges, the two items attract.