Question

200 mL of water is added to 700 mL of a 3-M NaCl solution. What is the concentration of the diluted solution?

Answer 1

Answer:

2.3 M

Explanation:

First we calculate the final volume of the solution:

• Final Volume = 200 mL + 700 mL

• Final Volume = 900 mL

With the final volume we can use a dilution factor to calculate the concentration of the diluted solution:

• Original Concentration * Initial Volume / Final Volume = Final Concentration

• 3 M * 700 mL / 900 mL = 2.3 M