Answer: 1.58 x 
Explanation:
1 mole of magnesium chloride has a mass of 95.211 g and contains 6.022⋅
formula units of magnesium chloride, you can say that,
25.0 g x (6.022 x
form units MgCl2) /95.211 = 1.58 x 
It equals 3076.22. i hope that helped.
A.water.
An aqueous solution is a solution in water.
Hope this helped :)
They are different by a phase shift of pi/2