Br3 solution combines with What is the concentration of the bromide ion if 25.0 mL of a 0.50 M Al 40.0 mL of a 0.35 M NaBr solution? Assume volumes are additive PQ-7. (A) 7.9x104 mol L (B) 0.41 mol-L0.79 mol-L- D) 2.1 mol-L-