Chemistry/Oxygen Preparation Prep

Equipment and Chemicals for Science 10 Lab

THE PREPARATION OF OXYGEN FROM HYDROGEN PEROXIDE AND POTASSIUM IODIDE

Chemicals:

1. 1.5 L of 6% hydrogen peroxide. Dilute 260 mL of 35% hydrogen peroxide to a total of 1500 mL. Divide into 6 bottles labeled “6% hydrogen peroxide”.
2. Beaker containing about 20 g of potassium iodide (labeled “potassium iodide”)
3. Oxygen tank
4. Concentrated ammonia

Equipment:

1. 12 — 250 mL filtration flasks
2. 14 — 600 mL beakers
3. 14 — ring stands
4. 12 — test tube clamps
5. 12 — large test tubes (25 x 250 mm)
6. 0.01 g electronic balance
7. 12 — 50-60 cm pieces of rubber tubing to fit side arm of filtration flask
8. 12 — rubber stoppers to fit top of filtration flasks
9. 12 – bunsen burners
10. 12 — flint strikers
11. 12 — wooden splints
12. 2 — large rings
13. 2 — 500 mL florence flasks
14. 2 — 2-hole rubber stoppers to fit florence flasks
15. 2 — medium dropping pipettes
16. 2 — 35 cm lengths of glass tubing to fit 2-hole stoppers