Answer:
[]Sugar] = 3M
Explanation:
Molarity indicates the moles of solute that are contained in 1 L of solution.
For this case, solute is the sugar
And the volume of solution is 4L
Molarity (mol/L) → 12 mol/4L = 3M
We can also make a rule of three to determine this:
4 liters of solution have 12 moles of solute (sugar)
1 liter of solution must have ( 1. 12) / 4 = 3 moles