Protective Personal Chemicals

The materials used in this project were general protective personal equipment such as lab coat, gloves and googles, 125 milliliter Erlenmeyer flask, 50 milliliter burette, 50 milliliter beaker, graduated cylinder, scale, vitamin c, phenolphthalein, methyl orange, deionized water and the following chemicals: sodium hydroxide, potassium hydrogen phthalate, hydrochloric acid and sodium bicarbonate. When it comes to these chemicals, make sure to wear the general protective personal equipment and handle with caution because these chemicals can burn. (MSDS Solution Center) For week one, the students first had to prepare the sodium hydroxide and the hydrochloric acid. Both of these were done by taking a graduated cylinder and measuring 8.3 milliliters of the chemical. Then, pour the chemical in a beaker and fill the beaker with 250 milliliters of distilled water. This will give the students 1 mole of hydrochloric acid ad 1 mole of sodium hydroxide. When it comes to the titration, the students first have to clean the burette with distilled water. Then, the burette is …show more content…
The solution being titrated will consist of a vitamin c tablet as well as 20 milliliters of deionized water. Four to five drops of phenolphthalein is added to the solution. Then, the sodium hydroxide is mixed with the solution by swirling it in until it becomes a light pink color. Record the final volume and this is repeated two more times. When it comes to titrating the sodium bicarbonate, the burette is filled with hydrochloric acid instead of sodium hydroxide. In the Erlenmeyer flask, it contained sodium bicarbonate and 20 milliliters of deionized water. Instead of phenolphthalein, four to five drops of methyl orange was added. The hydrochloric acid was added to the solution until there was a light pink color as well. Make sure the final volume is recorded and this process is repeated three times as