Lead lime can be converted into lead when heated in a hydrogen atmosphere. - Write down...

Lead lime can be converted into lead when heated in a hydrogen atmosphere.

- Write down a modern reaction scheme.

- Suggest a way to carry out the experiment that clearly reveals that water is formed during the reaction.

Expert Solution

First, we write the chemical formula of the substances in the system:

Lead lime: PbO

Lead: Pb

From the information given, we know that water is a rection product, so hydrogen must be a reagent due to the mass conservation law. The reaction scheme is:

PbO + H₂ Pb + H₂O

For a hydrogen atmosphere, we must heat lead lime (PbO) to increase the molecular disorder. The suggested temperature for this process is 350ºC.

A way to carry out this reaction is having a kitasato with a little amount of lead lime (PbO). We make vaccum in it and replace air eith hydrogen (H₂). Using a burner we increase the temperature of the flask untill 350ªC. We need to be carefully, because steam will expand applying a big pressure onto the flask walls.

queen_honey_blossom answered 2 years ago

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