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6:30 PM
1
Q: Distillation thermometer position

Lukas4235I am aware that in theory the position of the thermometer needs to be right at the transition point of the vapor into the condenser. In practice,I don´t reach the exact boiling temp. at this height but rather 2-3 °C less. When I put it down further it goes up to the correct one. In some distillat...

 
 
1 hour later…
7:39 PM
1
Q: Changes of colour of sunset yellow in water

Freeby FreebyI am conducting an experiment on “sunset yellow (FCF)”. Based on my observations, the substance, when in powder form, is bright red in colour (observed with naked eyes). When I dissolve the powder in distilled water, the solution turns dark red. And the increase in colour intensity is significant...

 

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