Suggest Reasons Why Recrystallization From Water Would Probably ...

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Log inSubjects>Science>Earth ScienceSuggest reasons why recrystallization from water would probably not be suitable procedure for purifying nacl caco3 c2h6o?Updated: 6/14/2024

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∙ 14y agoStudy nowSee answers (2)Best AnswerCopy

Starting with NaCl, Sodium and Chlorine have a large difference in electronegativity, which means in the polarity of water will be able to break the polar NaCl bond. In ethanol, C2H6O, there is enough difference in electronegativity between the Carbon and Oxygen for the polarity of the water molecule to break this bond. In CaCO3, it is the Carbon and Oxygen bonds again the break. This is far less soluble than the other two molecules, but the same reason still applies.

For recrystallisation, try something non-polar to wash your crystals, like hexane. If you were wanting to recrystalise the calcium carbonate, ice-cool distilled water would be fine and wouldn't drastically decrease your % yeild.

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Recrystallization from water may not be suitable for purifying NaCl, CaCO3, and C2H6O because NaCl is highly soluble in water and would not easily recrystallize. CaCO3 has limited solubility in water, making it challenging to achieve proper crystallization. C2H6O (ethanol) is also soluble in water and may not separate effectively during the recrystallization process.

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Earn +20 ptsQ: Suggest reasons why recrystallization from water would probably not be suitable procedure for purifying nacl caco3 c2h6o?Write your answer...SubmitStill have questions? Find more answers Ask your question Continue Learning about Earth Science

What concentration of potassium permanganate is suitable for purifying drinking water?

A concentration of 0.1-0.2 mg/L of potassium permanganate is suitable for purifying drinking water. It is important to carefully measure and monitor the concentration to ensure it is effective without being harmful to human health.

What is recrystallization?

Recrystallization is a purification technique used in chemistry to remove impurities from a solid compound. It involves dissolving the compound in a suitable solvent, then allowing it to slowly cool or evaporate, leading to the formation of pure crystals as the compound re-solidifies. By manipulating the solubility properties of the compound, recrystallization helps separate it from impurities that remain in solution.

Why was evaporation used to determine the mass percentage of potassium chloride rather than filtration or recrystallization?

Evaporation was used to determine the mass percentage of potassium chloride because it involves simply evaporating the solvent to leave behind the solid salt, allowing for easy separation and calculation of the mass. Filtration might not be suitable as it can lead to loss of product, and recrystallization is not necessary if the goal is only to determine the mass percentage.

Why is water a poor solvent for the recrystallisation of iodine?

Water is a poor solvent for the recrystallization of iodine because iodine is only slightly soluble in water. As a nonpolar solvent, water cannot effectively dissolve the polar iodine molecules, resulting in low solubility and poor recrystallization efficiency. Other solvents, such as ethanol or acetone, are more suitable for recrystallizing iodine due to their ability to dissolve iodine more effectively.

Why should the recrystallization solvent have a fairly low boiling point?

Using a recrystallization solvent with a low boiling point allows for easy removal of the solvent by evaporation, facilitating the formation of pure crystals. It also helps prevent the loss of desired compound during the purification process.

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