Answer:
Step-by-step explanation:
We can use the dilution formula to solve this problem:
M1V1 = M2V2
where M1 is the initial concentration, V1 is the initial volume, M2 is the final concentration, and V2 is the final volume.
We are given that the initial concentration is 3.6 M and the initial volume is 2.5 L. We want to find the final volume when the concentration is diluted to 2.6 M.
Substituting the given values into the dilution formula, we get:
(3.6 M)(2.5 L) = (2.6 M)(V2)
Solving for V2, we get:
V2 = (3.6 M)(2.5 L) / (2.6 M) = 3.46 L
Therefore, the final volume of the 2.6 M KBr solution obtained by diluting 2.5 L of a 3.6 M KBr solution is 3.46 L.