Lab Report On Tert-Butanol
Keeping it Liquid
Introduction:
Phase changes within our world play a key role in how substances can be manipulated, and formed. A phase change is, “a change from one state (solid or liquid or gas) to another without a change in chemical composition” (Collins Italian Dictionary, 2016). Moreover, in this experiment, the use of tert-butanol was needed to perform phase changes.
Tert-butanol is colorless oily with sharp odors, mixes with water, and has a freezing point of 78 degrees Farenheit (PubChem, 2016). This substance allows for proper testing due to its freezing point being at room temperature. Tert-butanol can easily show how the process of phase changes can happen without having to take the time to freeze a different substance. It is also necessary to note the molecular formula. Tert-butanol is C4H10O, which is an organic compound. Organic compounds can be highly flammable, so using this substance relies on the highest form of safety.
Additionally, there are two substances that are added to inhibit or aid in the time necessary to allow for a change of …show more content…
Looking through the data, we found that the freezing point of tert-butanol is 22 degrees Celsius. Besides finding the freezing point, we also need to calculate the molarity and molality of the additive substances in tert-butanol for our trials 2 and 3. For trial 2, the molecular weight of benzoic acid (C7H6O2) was found to be 0.25 grams. In trial 3, the calculated molecular weight of the benzoic acid was 0.49 mols.
Moles Trial 2- 0.31 g x (1 mole of Benzoic Acid)/(122.12134 g of Benzoic Acid)=0.00254 moles
Moles Trial 3- 0.611 g x (1 mole of Benzoic Acid)/(122.12134 g of Benzoic acid)=0.005 moles
Molality Trial 2- (0.00254 moles of Benzoic Acid)/(0.00031 kg of Benzoic Acid) = 8.19 m/kg
Molality Trial 3- (0.005 moles of Benzoic Acid)/(0.000611 kg of Benzoic Acid ) = 8.19 m/kg
Introduction:
Phase changes within our world play a key role in how substances can be manipulated, and formed. A phase change is, “a change from one state (solid or liquid or gas) to another without a change in chemical composition” (Collins Italian Dictionary, 2016). Moreover, in this experiment, the use of tert-butanol was needed to perform phase changes.
Tert-butanol is colorless oily with sharp odors, mixes with water, and has a freezing point of 78 degrees Farenheit (PubChem, 2016). This substance allows for proper testing due to its freezing point being at room temperature. Tert-butanol can easily show how the process of phase changes can happen without having to take the time to freeze a different substance. It is also necessary to note the molecular formula. Tert-butanol is C4H10O, which is an organic compound. Organic compounds can be highly flammable, so using this substance relies on the highest form of safety.
Additionally, there are two substances that are added to inhibit or aid in the time necessary to allow for a change of …show more content…
Looking through the data, we found that the freezing point of tert-butanol is 22 degrees Celsius. Besides finding the freezing point, we also need to calculate the molarity and molality of the additive substances in tert-butanol for our trials 2 and 3. For trial 2, the molecular weight of benzoic acid (C7H6O2) was found to be 0.25 grams. In trial 3, the calculated molecular weight of the benzoic acid was 0.49 mols.
Moles Trial 2- 0.31 g x (1 mole of Benzoic Acid)/(122.12134 g of Benzoic Acid)=0.00254 moles
Moles Trial 3- 0.611 g x (1 mole of Benzoic Acid)/(122.12134 g of Benzoic acid)=0.005 moles
Molality Trial 2- (0.00254 moles of Benzoic Acid)/(0.00031 kg of Benzoic Acid) = 8.19 m/kg
Molality Trial 3- (0.005 moles of Benzoic Acid)/(0.000611 kg of Benzoic Acid ) = 8.19 m/kg