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How do you determine the identity of an unknown substance by observing its mass and volume?
Wiki User
∙ 14y ago
All you can do with mass and volume is to determine the density of the substance.
density = mass / volume or p=m/v
after you determine the density, you can look on any density table and find the substance you are looking for.
good look.
-julio
Wiki User
∙ 14y ago
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How can you determine whether unknown substance is a mineral?
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How can you determine whether an unknown substance is a mineral?
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Contained in the chart to determine which unknown substance could be lithium?
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How did you determine the identity of the unknown materials?
Using many methods of chemical and physical analysis.
What is meant by a mixed melting-point determination?
"Mixed melting point determination" is a term used in chemistry. Organic substances have a fixed temperature at which they liquify. If a chemist wants to determine the nature of an unknown substance, he can determine it by these means. If the unknown substance does not melt at the usual temperature, it can be said to be impure. If the chemist has two unknown substances and wants to determine what they are, he may mix equal parts of each and start the liquification process. If the combination melts at the usual temperature, the chemist can say that both are the same. If the chemist wants to determine the nature of an unknown substance, he may mix a fixed amount of a known substance with a fixed amount of an unknown substance, it can be estimated, what the unknown substance is.
How can you test an unknown crystalline substance to determine whether it is table salt?
by tasting it
What is the calibration curve for rotameter?
calibration curve helps you determine the value of a unknown substance
When was Identity Unknown created?
Identity Unknown was created in 1945.
If you have 27 g of an unknown substance A and 75 g of chlorine gas Substance A contains 1.5 times as many molecules as the chlorine gas what is the identity of A?
chicken
Can you determine the identity of-an unknown substance by observing its mass and volume?
No, you cannot. The mass and volume of an unknown substance will give you its density. Density is not a property that can identify a substance unless you know that it is pure but not if it could be a mixture. For example, sodium has a density of 0.97 g/cc and osmium a density of 22.6 g/cc. These two metals can be combined in various proportions to give an alloy with a density with any value between the two given numbers. I am not sure how stable such an alloy might be but the point is that you could make an alloy with the same density as tin, or iron, or lead or bronze or most other metals or metallic alloys that you care to name.
Can you determine the identity of unknown substance by observing its mass and volume?
No, you cannot. The mass and volume of an unknown substance will give you its density. Density is not a property that can identify a substance unless you know that it is pure but not if it could be a mixture. For example, sodium has a density of 0.97 g/cc and osmium a density of 22.6 g/cc. These two metals can be combined in various proportions to give an alloy with a density with any value between the two given numbers. I am not sure how stable such an alloy might be but the point is that you could make an alloy with the same density as tin, or iron, or lead or bronze or most other metals or metallic alloys that you care to name.
How do forensic scientists analyze unknown powders?
Forensic labs are often called in to identify unknown powders, liquids and pills that may be illicit drugs. There are basically two categories of forensic tests used to analyze drugs and other unknown substances: Presumptive tests (such as color tests) give only an indication of which type of substance is present -- but they can't specifically identify the substance. Confirmatory tests (such as gas chromatography/mass spectrometry) are more specific and can determine the precise identity of the substance.
