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Mr. Bromiley from Broken Arrow, OK is requesting lab equipment through DonorsChoose, the most trusted classroom funding site for teachers.

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How Fast Is Your Reaction Classic Chemistry Labs Iodine Clock

Help me give my students hands-on chemistry laboratory experience in designing a classic reaction experiment.

  • $335 goal

Hooray! This project is fully funded

Hooray! This project is fully funded

My Project

This project allows chemistry students to experience first hand chemical reaction kinetics based on reactant concentrations. They will modify known concentrations of reactants to produce the desired time the reaction will occur.

This classic "Iodine Clock" experiment is a jaw dropper in the chemistry lab.

When the two clear solutions combine, the reaction, a changes from a clear liquid to bluish, black opaque solution in an instant when the reaction starts. The time it takes between the mixing and the opaque liquid to appear is directly proportional to the concentrations of the two original liquids. Starting with the concentrated solutions the student will customize their desired reaction time by calculated dilutions

Mr. Bromiley Early College High School Grades 9-12

More about Mr. Bromiley

Broken Arrow, OK View local requests

Half of students from low‑income households Data about students' economic need comes from the National Center for Education Statistics, via our partners at MDR Education. Learn more

110 students impacted 6donors

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Where Your Donation Goes

Where your donation goes
Materials Cost Quantity Total
ACETIC ACID (GLACIAL ACS) 2.5L HDPE BTL • Ward's Science $69.36 1 $69.36
LABORATORY SCOOP BLADE ONLY • Ward's Science $28.26 2 $56.52
POTASSIUM IODIDE LG 100G • Ward's Science $43.61 1 $43.61
STARCH SOLUBLE RG 500G • Ward's Science $24.01 1 $24.01
SODIUM THIOSULFATE ANHY RG 500G • Ward's Science $21.85 1 $21.85
SODIUM ACETATE ANHY LG 500G • Ward's Science $16.32 1 $16.32

Materials cost

$231.67

Vendor shipping charges

 FREE

Sales tax

 $18.88

3rd party payment processing fee

$3.48

Fulfillment labor & materials

$30.00

Total project cost

$284.03

Suggested donation to help DonorsChoose reach more classrooms

$50.12

Total project goal

$334.15

How we calculate what's needed

Total project goal

 $334.15

3 Donors

-$334.15

Donations toward project cost

-$284.03

Donations to help DonorsChoose reach more classrooms

-$50.12

Still needed View calculationHide calculation

 $0.00

Our team works hard to negotiate the best pricing and selections available.

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As a teacher-founded nonprofit, we're trusted by thousands of teachers and supporters across the country. This classroom request for funding was created by Mr. Bromiley and reviewed by the DonorsChoose team.

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