About this app

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.

Audience growth

Ratings growth

Steady

7-day gain +0

Ratings / day 0.0

30-day gain +0

US rating-count history

0 ratings

Baseline captured. Growth appears after the crawler observes a changed rating count.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

Price tracking