Answer:
- A
- B
- C
- A
Step-by-step explanation:
You want the more concentrated solution of the options given.
Concentration
The concentration of a solution is the ratio of the quantity of solute to the quantity of solution. For small amounts of solute that dissolve completely, the quantity of solution is substantially identical to the quantity of solvent.
Concentration has units of molar (M), or grams per liter or grams per milliliter.
1. 2.12 g
Here, substantially the same quantity of salt is dissolved in quantities of water that differ by a factor of 100. The salt is more concentrated where there is less water: Beaker A.
2. 0.5 mo.
Here, quantities that differ by a factor of 4 are dissolved in the same amount of solution. The larger quantity will result in the greater concentration. Beaker B has the more concentrated solution.
3. 0.6 M
The molarity is a measure of concentration. Beaker C has the highest concentration (the greatest molarity).
4. 0.6 mol
Beaker A has more solute in less solution, so will have the higher concentration. (0.5 L = 500 mL)
