A 25.0ml sample of concentrated HBr (7.42M) is diluted to a final volume of 5.00ml.what is the molarity of the final solution

To find the molarity of the final solution, we can use the formula:

M1V1 = M2V2

Where:
M1 = initial molarity
V1 = initial volume
M2 = final molarity
V2 = final volume

Plugging in the values:
7.42M x 25.0ml = M2 x 5.00ml

185.5 = 5M2

M2 = 185.5 / 5
M2 = 37.1 M

Therefore, the molarity of the final solution is 37.1 M.