Question

How many moles of MgCl2 are in 727.6 mL of 3.77 M of MgCl2

Answer 1

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