Final answer:
To calculate the density of totally crystalline and totally amorphous polyethylene terephthalate, you need to know the mass and volume of each material. Density is calculated by dividing the mass of an object by its volume.
Step-by-step explanation:
To calculate the density of totally crystalline and totally amorphous polyethylene terephthalate, you would need to know the mass and volume of each material. Density is calculated by dividing the mass of an object by its volume. The formulas for calculating density are:
Density = Mass / Volume
For example, if you have a piece of totally crystalline polyethylene terephthalate with a mass of 100 grams and a volume of 50 cm³, the density would be:
Density = 100 g / 50 cm³ = 2 g/cm³
Similarly, if you have a piece of totally amorphous polyethylene terephthalate with a mass of 75 grams and a volume of 30 cm³, the density would be:
Density = 75 g / 30 cm³ = 2.5 g/cm³