( ( ( The value ) ( of pH ) ) ( ( determines ( how ( ( ( ( acidic or ) basic ) ( a solution ) ) is ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN value)) (PP (IN of) (NP (NN pH)))) (VP (VBZ determines) (SBAR (WHADVP (WRB how)) (S (NP (ADJP (JJ acidic) (CC or) (JJ basic)) (DT a) (NN solution)) (VP (VBZ is))))) (. .)))
The value of pH determines how acidic or basic a solution is.
(ROOT (S (NP (DT The) (NN ph) (NN scale)) (VP (VBZ is) (VP (VBN used) (S (VP (TO to) (VP (ADVP (RB succinctly)) (VB communicate) (NP (NP (DT the) (NN acidity) (CC or) (NN basicity)) (PP (IN of) (NP (DT a) (NN solution))))))))) (. .)))