The table below shows some physical properties of two unknown samples.
Physical Properties
Sample Mass Boiling Point
X 100 g 56 °C
Y 290 56 °C
What would best support whether the two samples are of the same substance or not?
the two substance are the same because their intensive property is the same
What does it mean when something is solid?
solid, one of the three basic states of matter, the others being liquid and gas. (Sometimes plasmas, or ionized gases, are considered a fourth state of matter.) A solid forms from liquid or gas because the energy of atoms decreases when the atoms take up a relatively ordered, three-dimensional structure.
To determine if the two samples are of the same substance or not, we can compare their physical properties. Specifically, in this case, we can compare their mass and boiling points.
In the table provided, it shows that both samples have the same boiling point of 56 °C. This suggests that both samples have the same substance, as boiling point is an intensive property that is usually constant for a given substance under normal conditions.
However, we should not solely rely on a single physical property to conclude that two substances are the same. It is important to consider multiple properties or perform additional tests to confirm the identity of the substances.
To further support the conclusion that the two samples are of the same substance, we can also compare other physical properties such as density, color, conductivity, solubility, or chemical composition. By comparing multiple properties and finding similarities, we can strengthen the evidence that the two samples are indeed the same substance.
Yes, a cup of water boils at the same temperature as a pan of water.
There may be several compounds with the same boiling point. I would want to do a melting (freezing point) determination. If the m.p. was the same
it wouldn't prove the two were the same but likely they were the same. The probability that the two are the same increases with the number of physical properties that are the same.