Question

Find the molarity of a 8.9M KOH solution if 76 ml of solution is diluted to 171 ml?

3.96m

20.03M

0.25m

3.96M
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Answer 1

3.96 M

Step-by-step explanation:

Step 1: Given data

• Concentration of the concentrated solution (C₁): 8.9 M

• Volume of the concentrated solution (V₁): 76 mL

• Concentration of the diluted solution (C₂): ?

• Volume of the diluted solution (V₂): 171 mL

Step 2: Calculate the concentration of the diluted solution

We can calculate the concentration of the diluted solution using the dilution rule.

C₁ × V₁ = C₂ × V₂

C₂ = C₁ × V₁/V₂

C₂ = 8.9 M × 76 mL/171 mL = 3.96 M