complete the statements by placing the appropriate terms from the choices given. you are currently in a labeling module. turn off browse mode or quick nav, tab to items, space or enter to pick up, tab to move, space or enter to drop. in general, a buffer is a solution containing a weak acid and its , or a weak and its conjugate acid. the amount of strong base or acid that must be added to one liter of a buffer in order to change its ph by one unit is an expression of . answer bank