Question

(1 pt) You have 250.0 mL of 0.136 M HCl. Using a volumetric pipet, you take 25.00 mL of that solution, place it in a 100.00 ml volumetric flask add water to the flask to bring it to the 100.00 ml mark. What is the concentration of the diluted solution

Answer 1

The concentration of the diluted HCl solution is 0.034 M after diluting 25.00 mL of a 0.136 M HCl solution to a final volume of 100.00 mL.

Step-by-step explanation:

You have 0.136 M HCl and dilute 25.00 mL of it to a final volume of 100.00 mL. The concentration of the diluted solution can be calculated using the dilution formula: M1V1 = M2V2, where M1 is the initial molarity, V1 is the initial volume, M2 is the final molarity, and V2 is the final volume.

To find the final molarity M2:
M2 = (M1 × V1) / V2
M2 = (0.136 M × 25.00 mL) / 100.00 mL
M2 = (3.40 mM) / 100.00 mL
M2 = 0.034 M

So, the concentration of the diluted solution is 0.034 M.

Answer 2

0.034M HCl is the concentration of the diluted solution

Step-by-step explanation:

You take, initially, 25.00mL of the 0.136M HCl. Then, you dilute the solution to 100.00mL. The solution is diluted:

100.00mL / 25.00mL = 4. The solution was diluted 4 times.

That means the concentration of the diluted solution is:

0.136M / 4 =

0.034M HCl is the concentration of the diluted solution