0.1 mol of the base ammonia, NH3, is placed in sufficient water to make 1.0 L of solution. Ka =1.8 x10-5. (a) Write an equation that describes the reaction that takes place. (b) Give a brief calculation of [OH-]? (c) What is [NH3]? (d) What is the concentration of the conjugate acid of ammonia? (e) Give a brief calculation of pH.