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Can you determine the identity of an unknown substance by calculating its density and observing chemical reactions?
Wiki User
∙ 15y ago
Yes. You can divide the mass by the volume to find its density. Density is a property that can identify a substance.
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No, you cannot! Density is not a property that can identify a substance unless you know that it is pure.
All you can do is with mass and volume is determine the density of the substance, which 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.
Wiki User
∙ 9y ago
Wiki User
∙ 9y agoNo, 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.
Wiki User
∙ 15y agoYes, the desity of an object and the chemical reactions it will under go are what scientists use to determine its composition
Wiki User
∙ 13y agoby using density, d=m/v, You can determine a substance.. when you have the density just seach for an element or comound that matches on the internet
Wiki User
∙ 11y agoThe mass-to-volume ratio is called density, and yes it can help identify an unknown substance, but you would need more than just density.
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What does the density of a substance determine?
It determines the mass of the substance per unit volume.
When using a water bath to determine the boiling point of a substance the substance's boiling point must be what?
Below 100 °C.
What is some information about Neutralization reactions?
Neutralization occurs when an acid reacts with an alkali to make a neutral substance pH 7.
What is a change that alters the form or appearance of a substance but does not make it into other substance?
It is considered a physical change. A chemical change involves chemical reactions that change the substance into another substance. A physical change typically only modifies the form or phase.
A substance which helps a reaction to take place but that does not take an active part is a?
A substance which helps with chemical reactions, by making them possible at all, or reducing the effort required, is a catalyst.
How do scientific tests help determine the properties of substance?
Scientific tests can help determine substances that appear similar but react differently under the same circumstances. By observing the reactions of the substance using an experiment, you can determine what that substance is made from.
How can the chemical properties of a substance the Determine?
By observing how it reacts with other substances
Why is stoichiometry used for?
Calculating the mass of a product from the number of moles of reactants APEX
How do you determine the identity of an unknown substance by observing its mass and volume?
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
How can the chemical properties of a substance be determined?
test its solubitlity by seeing if it dissolves in a solution
What can be used to indentify a substance?
Any characteristics you can determine by your 5 senses plus any chemical reactions it makes.
Substance in body fluids that determines most of their chemical and physical reactions?
According to Marieb, 8th edition, "Electrolytes are the most abundant solutes in body fluids and determine most of their chemical and physical reactions"
Why is the average mass used when calculating grams of a substance?
the elements in the substance are mixtures of their isotopes
Who is the first scientist which determine density?
ARCHIEMEDES was the first scientist who determine the density for the first time by observing the gold substances in water and said that the material have greater density remain below while the substance have low density flow on water..
What effect does observing a substance have on physical properties on a substance?
It can be observed without changing the identity of the object.
Why is the average atomic mass used when calculating grams of a substance?
the elements in the substance are mixtures of their isotopes
What science instrument is used when observing the molecules of substance?
Electron microscope.
