Using a measuring cylinder, measure 5 cm 3 of hydrochloric acid and add to a test-tube. Repeat step 1 with ethanoic acid into a separate test-tube. Add 5 drops of Universal Indicator to each test ...

A cotton swab is dipped into concentrated hydrochloric acid (producing hydrogen chloride gas) while a second on is dipped into concentrated aqueous ammonia (producing ammonia gas). Both cotton swabs ...

A solution of 1 g/dm 3. hydrochloric acid has a pH of 1.6. Predict its pH when it is diluted to 0.1 g/dm 3. The hydrogen ion concentration decreases by a factor of 10, so the pH increases by 1 ...