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Answer :

Here, M = number of moles/volume of solution (L)

1 L = 1000 mL ===> 727.6 mL = 0.7276 L

3.77 M = 3.77 mol/L (concentration of the solution

Solute = MgCl2

M = No. of moles/volume

M x volume = No of moles MgCl2

3.77 mol/L x 0.7276 L = No of moles MgCl2

2.76 moles = No of moles MgCl2

Answer: 2.76 moles

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