CloudLabs Measuring pH

In this laboratory it is possible to perform quality control on five food samples. To carry out these tests, the pH must be measured with indicator paper and a pH meter, and then compared with a table of allowed values. For the development of this practice, you will have bottles with buffer solutions of pH 10, pH 7 and pH 4, respectively, five samples to measure pH, litmus paper, three watch glasses and a pH meter.