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Can density be used as identification for substances in lab?
Yes, density can be used as a useful property for identifying substances in lab experiments. By measuring the density of a substance and comparing it to known values, scientists can help determine the identity of an unknown substance.
What is the relationship between the molar mass and density of a substance?
The relationship between the molar mass and density of a substance is that the molar mass affects the density of a substance. Generally, substances with higher molar masses tend to have higher densities. This is because the molar mass represents the mass of one mole of a substance, and denser substances have more mass packed into a given volume.
Why is density of a substance important?
Density is important because it helps determine the behavior of substances in different conditions. It can be used to identify substances and in quality control processes. Additionally, density plays a role in various scientific calculations and engineering applications.
How can density be used to determine the identity of a substancce?
Density can be used to determine the identity of a substance by comparing the density of the unknown substance to the known densities of different substances. Each substance has a characteristic density, so if the density of the unknown substance matches that of a known substance, it can help identify the unknown substance.
If 2 pure substances have the same density are they same substance?
Not necessarily. Two pure substances can have the same density but still be different substances. Density is an intensive property that is dependent on the substance's mass and volume, not its chemical composition.
What is the ratio mass of a substance to the volume of the substances?
Its density.
What is the ratio of the mass of a substance to the volume of the substances?
That's the definition of the density of the substance.
What are some ways the density of a substance can be increased and decreased?
The density of a substance can be increased by compressing it or increasing its mass without changing its volume. It can be decreased by expanding it or reducing its mass without changing its volume. Temperature changes can also affect density, with most substances expanding when heated and contracting when cooled.
Which conclusion is supported by the given data in the table mass volume and density measurement of substances?
The conclusion supported by the data in the table depends on the actual values provided. If the density remains constant for all substances, you can conclude that density is consistent. If the density changes with mass and volume, you can infer a relationship between mass, volume, and density.
What are two reasons why density is a useful property identifying substances?
Density can tell you how "pure" a substance is. Since each substance has a specific density in its "pure" state, having no other substances in its composition, by measuring it density you can tell how pure the mineral or substance is, 99.9% pure gold.
What are two reasons why density is a useful property for identifying substances?
Density is specific for each substance. Also the measurement is generally simple.
Does a substance change density if it changes physically?
Depends on what you consider a physical change. Substances change their density when they change their state of matter. When the temperature rises, substances usually expand, wich leads to the density decreasing. When the temperature falls, substances contract, increasing the density. Exception would be water, as it shows an anomaly occurring near 273K
How could density be used to determine the mass of particular volume of a substance?
In a set volume of any substance increasing the density increases its mass
How does density react in earth?
The word 'react' in chemistry means the interaction of substances to form new substances. It has nothing to do with density. Density is measured for a substance that is NOT undergoing a reaction.
What is the only way the density of a pure substance can change?
The density of a pure substance can change by altering its temperature. As temperature increases, most substances expand and therefore decrease in density, whereas as temperature decreases, most substances contract and increase in density.
The amount of mass in a given volume of a substance is the substances?
That is called "density".
Can density be used as identification for substances in lab?
Yes, density can be used as a useful property for identifying substances in lab experiments. By measuring the density of a substance and comparing it to known values, scientists can help determine the identity of an unknown substance.
