PRÀCTICA 20: pH DE PRODUCTES D'ÚS QUOTIDIÀ OBJECTIUS -
Calcular el pH de productes d'ús quotidià amb el paper indicador i el pHmetre. Treballar de manera ordenada i neta en el laboratori. Treballar en grup.
FONAMENT TEÒRIC
MATERIAL - Productes d'ús quotidià - pHmetre
- Paper indicador
PROCEDIMENT 1.- Mesura el pH de cada producte amb el paper indicador i el pHmetre. 2.- Classifica els diferents productes segons siguin àcids, bàsics o neutres.
Hidròxid de sodi 0,1M Amoníac Bicarbonat Lleixiu Aigua destil·lada Aigua de l'aixeta Llet Cervesa Vinagre Suc de taronja Coca-Cola Àcid clorhídric 0,1M Xampú After Bite Suc de llima Pasta de dents Aigua oxigenada Alcohol Salfumant Oli
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