Rate of Reaction of Sodium Thiosulfate and Hydrochloric Acid

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Vary the concentrations of reactants and measure the time it takes for product to appear.

This video is part of the Flinn Scientific Best Practices for Teaching Chemistry Video Series, a collection of over 125 hours of free professional development training for chemistry teachers –

ATTENTION: This demonstration is intended for and should only be performed by certified science instructors in a safe laboratory/classroom setting.

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49 COMMENTS

  1. bro lemme know real quick if you can do my research investigation. scientific question is does temperature and concentration have an effect of the rate of reaction (sodium thiosulphate and hydrochloric acid)

  2. Take a chemical experiment that looks like magic, make it as boring and tedious as possible, and Voila! – you've put kids off science for life. Good work.

  3. Ugh here to learn something but that thing ohln her shoulder ruined it hahahaha WHY? And WHAT is that? Hahaha

  4. Whatever is in her shoulder is a mole.. Not the animal but the measurement of the number of atoms, the mass of atoms and also the volume of atoms….

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