In the resolution of 1-phenylethylamine using (-)-malic acid, the compound obtained by recrystallization of the mixture of

Question:

In the resolution of 1-phenylethylamine using (-)-malic acid, the compound obtained by recrystallization of the mixture of diastereomeric salts is (R)-1-phenylethylammonium (S)-malate. The other component of the mixture is more soluble and remains in solution. What is the configuration of the more soluble salt?