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 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 ...

If the hydrogen ion concentration in a solution increases by a factor of 10, the pH of the solution decreases by 1. A solution of 1 g/dm 3. hydrochloric acid has a pH of 1.6. Predict its pH when ...

Firstly clean the nichrome wire by dipping the loop in the concentrated hydrochloric acid and placing it in the hot blue flame of the Bunsen burner. Repeat until the flame is no longer coloured ...

The sodium reacts most vigorously with the nitric acid, producing a flame and smoke. The sodium also reacts pretty strongly with the weaker concentration of hydrochloric acid. The demonstration shown ...