First name Second name Sample m1; m2; m3; m4 [g] V1; V2; V3; V4 [mL] Luna GALÁN Salicylic Acid 0.1212; 0.1205; 0.1199; 0.1200 7.83; 7.79; 7.75; 7.74 Aurélia Herminie Yvonne GUIDEVAUX Ammonium Chloride 0.9997; 1.0054; 1.003; 0.9989 18.25; 18.67; 18.57; 18.15 Filippos CHATZITTOFI Benzoic Acid 0.2002; 0.2004; 0.1999; 0.1998 14.38; 14.57; 14.08; 14.24 Marianna CHRISTODOULIDOU Sodium Carbonate Decahydrate 1.0111; 1.0054; 1.0068; 1.0005 6.98; 6.75; 6.55; 6.52 Lidia PRIETO Salicylic Acid 0.1201; 0.1212; 0.1187; 0.1199 6.53; 6.88; 6.75; 6.78 Soroush Felix SABER Ammonium Chloride 1.0100; 1.007; 0.9995; 1.0005 11.67; 11.57; 11.15; 11.18 Alicia VALLS ARRUFAT Benzoic Acid 0.2002; 0.2004; 0.1999; 0.1989 16.38; 16.57; 16.08; 16.05 Jaime VIEIRA RUIZ Sodium Carbonate Decahydrate 0.9954 1.0004; 1.0151; 1.0040 3.98; 3.75; 3.55; 3.75