Produce harmless gas to inflate a rubber balloon

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Discussion Overview

The discussion revolves around finding a chemical reaction that produces a harmless gas suitable for inflating a rubber balloon, with an emphasis on using small amounts of reactants. Participants explore various chemical combinations and their properties.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant suggests using baking soda and vinegar to produce carbon dioxide.
  • Another participant provides a series of chemical reactions involving vinegar and sodium carbonate, as well as alternatives using hydrochloric, sulfuric, or phosphoric acid, detailing the products of each reaction.
  • A participant raises a concern about the relationship between the size of starting materials and the danger associated with the reaction, implying that smaller amounts may lead to more hazardous reactions.
  • One participant inquires about the speed of the reaction between vinegar and sodium carbonate, asking if anyone has experience with the rate of gas production.

Areas of Agreement / Disagreement

Participants present multiple methods for producing gas, but there is no consensus on the best approach or the implications of using different reactants. The discussion remains unresolved regarding the optimal reaction conditions.

Contextual Notes

Participants express varying interpretations of "small amount" and the potential dangers associated with different chemical reactions, indicating a need for clarity on definitions and safety considerations.

ShashankRGoel
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Hi to all
I am new to this forum. I need some help.
I want a chemical reaction which produces a harmless gas with the use of small amount of reactants.
Thanks
Shashank
 
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Baking soda + vinegar = carbon dioxide (among other things).
 
Don't know what you mean with "small amount". However you can begin with a classic: vinegar + sodium carbonate:

2CH3COOH + Na2CO3 --> CH3COONa + H2O + CO2

Instead of acetic acid of vinegar you can use hydrochloric or sulphuric or phosphoric acid:

2HCl + Na2CO3 --> 2NaCl + H2O + CO2

H2SO4 + Na2CO3 --> Na2SO4 + H2O + CO2

2H3PO4 + 3Na2CO3 --> 2Na3PO4 + 3H2O + 3CO2

Edit: beaten on the time about the first...
 
The smaller the starting material and the greater the gas produced, the more dangerous the thing is.
 
What about the speed of reaction in vinegar + sodium carbonate ? How fast does it produce gas? Anyone ever tried?
 

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