Oxy Boost

LAB 2: Measuring the Composition of Oxy-Boost™-A Natural Non-Chlorine Bleach

Objective

The experimental goal is to determine the amount of sodium percarbonate and carbonate in a 1.0-gram sample of Oxy-Boost™ using stoichiometry.

Background

Oxyboost is chemical compound that consists of a sodium percarbonate and carbonate mixture. In recent years, percarbonate has become a widely used compound for cleaning, bleaching, and removing stains. The ingredients in Oxyboost have also commonly been used in food bleachers, carpet bleachers, fabric bleaches and wood bleaches. Sodium percarbonate is white and grainy in texture and when heated decomposes into sodium carbonate, water, and molecular oxygen, thus making Oxyboost extremely environmentally friendly.

Materials

* Protective eyewear

* Hot plate

* Powdered Oxy-Boost™-

* Beaker (50 mL)

* Electric balance

* Erlenmeyer flask (250 mL)

* Deionized water

Procedure

1. Record mass of empty 50mL beaker.

2. Weigh out approximately 1.00 grams of Oxyboost solid and record mass to the nearest milligram and add it to the beaker.

3. Weigh the beaker again with the Oxyboost sample and record mass.

4. Setup hot plate and set temperature to 200°C.

5. Place beaker with Oxyboost sample on hotplate for 20 minutes.

6. After 20 minutes, remove the beaker from the hot plate and let it cool.

7. Once cooled, weigh the beaker again. If there is not a significant difference in weight, return beaker to hotplate for an additional 5 minutes. Then reweigh the beaker.

Results

The experimental goal was to determine the amount of sodium percarbonate and sodium carbonate present in a sample of Oxyboost. Based on the initial weight of our beaker and the weight lost after heating the beaker, we were able to determine the weight in grams of hydrogen peroxide as sodium percarbonate decomposed to give off water and oxygen.

Mass of empty beaker = 35.06g

Mass of...