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Adding sand and anhydrous magnesium sulfate to a leaf during chromatography helps to break down the plant cells and extract the pigments effectively. Sand mechanically grinds the leaf tissue, while anhydrous magnesium sulfate acts as a drying agent to remove water from the leaf, allowing for better separation of pigments during chromatography.
What else can I help you with?
When crystal of copper sulphate strongly heated what residue obtain?
When a crystal of copper sulfate is strongly heated, it undergoes dehydration and turns into anhydrous copper sulfate, leaving a white residue. This white residue is the anhydrous form of copper sulfate, which has lost its water molecules during the heating process.
Why is it necessary to add anhydrous magnesium sulphate to the alcohol and ether during the sodium test?
Anhydrous magnesium sulfate is added to remove any traces of water from the alcohol and ether, ensuring a dry environment for the sodium test. Water can react with sodium and interfere with the test results, so removing it helps to ensure an accurate and reliable test.
Why is it necessary to weigh an anhydrous substance with a cover on?
Weighing an anhydrous substance with a cover on helps prevent moisture from the air from being absorbed by the substance, which could affect the accuracy of the measurement. By keeping the cover on during weighing, the substance is protected from exposure to moisture or other contaminants.
What is mean by isothermal in gas chromatography?
Isothermal in gas chromatography means that the temperature of the column is kept constant during the analysis. This helps to maintain consistent separation of the analytes as they pass through the column, allowing for accurate and reproducible results.
If a 2.743 g sample of magnesium sulphate crystals was heated strongly what would be the mass of the cooled dehydrated salt?
The mass of the cooled dehydrated salt would be less than 2.743 g because heating would remove water molecules, decreasing the overall mass. The exact mass would depend on the percentage of water lost during heating.
Why is anhydrous magnessium sulphate used in crushing the leaves you peparation forchromatography?
Anhydrous magnesium sulfate is used in crushing leaves in preparation for chromatography because it acts as a drying agent. It helps to remove any moisture from the plant material, ensuring that the pigments and other compounds are not diluted by water. This enhances the efficiency of the extraction process, allowing for better separation and identification of the substances during chromatography. Additionally, it helps to preserve the integrity of the compounds being analyzed.
What are the properties of blue vitriol altered during water of crsytallization?
Blue vitriol is a very obsolete name for the copper(II)sulphate: CuSO4. Don't use in the future this term. Pentahydratated copper(II) sulphate: CuSO4.5H2O - bright blue color After the dehydratation of the above compound we obtain the anhydrous copper(II) sulphate: CuSO4 - pale green color.
When crystal of copper sulphate strongly heated what residue obtain?
When a crystal of copper sulfate is strongly heated, it undergoes dehydration and turns into anhydrous copper sulfate, leaving a white residue. This white residue is the anhydrous form of copper sulfate, which has lost its water molecules during the heating process.
Why do we add sand and magnesium sulphate in chromatography?
In chromatography, sand is often added to the stationary phase to provide a solid support that enhances the separation process by increasing the surface area for interactions with the mobile phase. Magnesium sulfate acts as a drying agent to remove moisture from samples and can help stabilize certain compounds during the separation. Together, they improve the efficiency and resolution of the chromatographic separation.
What is the role of anhydrous sulfate?
Anhydrous sodium sulfate is considered as a drying agent. It is used in expirements to remove water from a solution or during an expirement. hope this helps.
Why is it necessary to add anhydrous magnesium sulphate to the alcohol and ether during the sodium test?
Anhydrous magnesium sulfate is added to remove any traces of water from the alcohol and ether, ensuring a dry environment for the sodium test. Water can react with sodium and interfere with the test results, so removing it helps to ensure an accurate and reliable test.
Does the mass increase or decrease when anhydrous compounds decompose?
when anhydrous compounds decompose their mass will decrease
Why is it necessary to weigh an anhydrous substance with a cover on?
Weighing an anhydrous substance with a cover on helps prevent moisture from the air from being absorbed by the substance, which could affect the accuracy of the measurement. By keeping the cover on during weighing, the substance is protected from exposure to moisture or other contaminants.
Who discovered candy chromatography?
Candy chromatography was not discovered by one specific individual. It is a scientific technique that involves separating and identifying different components in candy dyes through a process similar to traditional chromatography.
What is the Rf value of any insoluble dye?
Since insoluble dyes do not move with the solvent front during chromatography, they do not have an Rf value. Rf values are only calculated for substances that show movement during chromatography.
Is dissolving anhydrous copper ii sulphate an exothermic reaction?
Oh, dude, you're asking about chemistry now? Well, technically, dissolving anhydrous copper II sulfate in water is an endothermic reaction because it absorbs heat from its surroundings. So, yeah, it's not exothermic, but hey, at least you're learning something, right?
Why you use anhydrous ether during the preparation of Grignard's reagent why not anhydrous hexane?
You should really use anhydrous hexane; however, ethers can absorb large quantities of water; THF is completely miscible with water and will thus require extensive drying in order to get an anhydrous environment. Hexane absorbs very little water due to the unfavourable interactions between it and water. Therefore "non-anhydrous" hexane contains such a small quantity of water that the Grignard reagent formed will more than adequately dry the hexane.
