The table below displays four solutions made by dissolving salt in water.

Solution | Mass of NaCI (g) | Volume of water (mL)
A | 5.0 | 50.0
B | 5.0 | 75.0
C | 5.0 | 100.0
D | 5.0 | 125.0
Which of the solutions has the highest concentration of salt?

5 answers

To determine which solution has the highest concentration of salt (NaCl), we can calculate the concentration of each solution using the formula:

\[ \text{Concentration (g/mL)} = \frac{\text{mass of NaCl (g)}}{\text{volume of water (mL)}} \]

Now, let's calculate the concentration for each solution:

  1. Solution A: \[ \text{Concentration A} = \frac{5.0 , \text{g}}{50.0 , \text{mL}} = 0.1 , \text{g/mL} \]

  2. Solution B: \[ \text{Concentration B} = \frac{5.0 , \text{g}}{75.0 , \text{mL}} \approx 0.0667 , \text{g/mL} \]

  3. Solution C: \[ \text{Concentration C} = \frac{5.0 , \text{g}}{100.0 , \text{mL}} = 0.05 , \text{g/mL} \]

  4. Solution D: \[ \text{Concentration D} = \frac{5.0 , \text{g}}{125.0 , \text{mL}} = 0.04 , \text{g/mL} \]

Now we can compare the concentrations:

  • Concentration A: 0.1 g/mL
  • Concentration B: 0.0667 g/mL
  • Concentration C: 0.05 g/mL
  • Concentration D: 0.04 g/mL

The solution with the highest concentration of salt is Solution A with a concentration of 0.1 g/mL.

so which solution?

The solution with the highest concentration of salt is Solution A.

A, B, C, or D?

The solution with the highest concentration of salt is Solution A.