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In order for a substance to be a primary standard it must be able to dissolve in water. Since iodine is unable to do this it cannot be used as a primary standard
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Iodine is obtained from which organism?
Iodine can be obtained from seaweed, as it accumulates in various species of algae and kelp from the ocean. Seaweed is a primary source of iodine in marine ecosystems and is often used in the production of iodine supplements.
What element deficiency causes goiter?
Iodine deficiency is the primary cause of goiter. Iodine is essential for the production of thyroid hormones, and a lack of iodine can lead to the thyroid gland becoming enlarged in an attempt to produce more hormones.
Iodine sublimes to iodine vapor is physical or chemical change?
Sublimation of iodine to iodine vapor is a physical change. It is a phase transition in which a substance goes directly from a solid to a gas without changing its chemical composition.
Does solid iodine give blue gas on sublimation?
Yes, solid iodine sublimes directly to a purple vapor, not blue.
What state of matter is iodine at room temperature?
At room temperature iodine is a solid halogen.
Why iodine is not considered as a primary standard?
Iodine is not considered a primary standard because it can undergo sublimation (solid to gas phase transition) and has a limited solubility in water, which can lead to inaccuracies in volumetric analyses. Additionally, iodine can react slowly over time with air and other compounds, affecting its stability and reliability as a primary standard.
Which halogen goes from the solid phase directly to a gas?
Iodine is the halogen that sublimes directly from a solid to a gas at standard pressure and temperature.
What is iodine vapour?
A "vapor" in chemistry is always the gas phase of a substance that is more familiar in one of its condensed phases: liquid or solid. Therefore, iodine vapor is the gas phase of the element iodine, and has the same molecular composition as the solid, I2. Iodine is a solid at standard temperature and pressure, but sublimes directly to gas phase, without any intermediate liquid phase, at only moderately higher temperatures than the standard.
What is the symbol for iodine gas?
I2(g) is the symbol for iodine in its standard state (including its state symbol.)
Iodine what is it's state of matter?
Under standard conditions of temperature and pressure Iodine is a crystalline solid.
What is the volume of iodine?
The volume of iodine at standard temperature and pressure (STP) is 22.4 L per mole.
What is the standard atomic notation for iodine?
53 ..I 127
What gas is produced when iodine are heated?
When iodine is heated, it sublimes directly from a solid to a purple gas. The gas produced is diatomic iodine molecules (I2).
At STP which element is a solid hydrogen or iodine?
At standard temperature and pressure (STP), iodine is a solid while hydrogen is a gas.
Iodine is obtained from which organism?
Iodine can be obtained from seaweed, as it accumulates in various species of algae and kelp from the ocean. Seaweed is a primary source of iodine in marine ecosystems and is often used in the production of iodine supplements.
Why can gas iodine stick to fingerprints?
The gas iodine will stick to the fingerprints because they will crystallize when they come into contact with a cool surface. When heated, iodine directly changes into vapor.
What changes from a solid directly to a gas?
Carbon dioxide and Iodine both sublime directly from solids to gases.
