Fri, Dec 21, 2018 7:48 PM in Stoichiometry Resources
Drop me a line after the weekend and I’ll send you an activity that has students doing stoichiometry without knowing they’re learning. All while roasting marshmallows for s’mores.
Best,
Bryan Smith
Anchorage
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Tue, Sep 12, 2017 10:10 AM in Elephant Toothpaste
Jesus, I find much less expensive 30% H2O2 at a local store that sells water purification systems. The concentration is key since the reaction is exothermic enough to auto-accelerate. Be sure you test it with small amounts first, because those higher concentrations of H2O2 present additional hazards.
Best,
Bryan=
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Tue, Mar 21, 2017 5:54 PM in Planet Protection Chemistry Labs?
Kyle, would you be interested in measuring the CO2 concentration in the air? I’ve worked up a gravimetric method that traps the CO2 in diluted sodium hydroxide, then precipitate with barium chloride. In addition to the chemicals, the only at all unusual equipment is a small air pump (like you’d find in a small fish tank) per group. Rolling this lab into a conversation/seminar on global energy s...
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