Your stomach contains hydrochloric acid, a highly corrosive chemical compound that can dissolve certain metals and would ...

or use a pH meter to record the pH. You should find that hydrochloric acid has a lower pH than ethanoic acid. This tells us that the hydrochloric acid released more H + ions than the ethanoic acid ...

A solution with a pH value which is less than 7 is acidic ... Magnesium plus nitric acid gives us magnesium nitrate. Calcium plus hydrochloric acid gives us calcium chloride.

BTB should be green in color. Add either a few drops of acid or base to adjust the pH of the BTB. (We used a few drops of 0.2 M Hydrochloric acid to adjust the pH of the BTB.) 4, 8 Nothing - this is ...