matthewsingh35681 matthewsingh35681 08-05-2024 Chemistry Answered A chemistry graduate student is given 300. mL of a 0.90M ammonia (NH₃) solution. Ammonia is a weak base with Kb=1.8 × 10⁻⁵ What mass of NH₄Br should the student dissolve in the NH₃ solution to turn it into a buffer with pH = 8.92?