Get premium membership and access questions with answers, video lessons as well as revision papers.

The set up below was used to prepare a gas and study some of its properties. Study it and answer the questions that follow:

      

The set up below was used to prepare a gas and study some of its properties. Study it and answer the questions that follow:
curve42020171203.jpg
aState and explain the observations made in the:
i) Tube labelled A;
ii) State one precaution that should be taken when carrying out this experiment.

  

Answers


John
i) - Black precipitates are formed

- Hydrogen sulphide reacts with lead (II) ethanoate to form insoluble lead (II) sulphide which is black

ii) -Solution in B turns red

- Hydrogen sulphide burns in air to form sulphur (IV) oxide which dissolves in water to form acidic solution.
johnmulu answered the question on April 20, 2017 at 09:09


Next: Below is a sketch of graph showing the change in viscosity (Ease of flow) with temperature when solid sulphur is heated. Describe what happens to the sulphur molecules when is heated from 150oC to about 200oC.
Previous: The flowchart below shows some of the processes involved in large scale production of sulphuric (IV) acid. Use it to answer the questions that follow.

View More Chemistry Questions and Answers | Return to Questions Index


Learn High School English on YouTube

Related Questions