NaI has ions and has strong electrostatic force of attraction, hence high melting point. Naphthalene has weak van der Waals forces of attraction between the molecules and hence have low melting point.
Sodium iodide
RAM Na=23g RMM NaI=150g Percent composition=23/150*100% =15.3
The compound Nal is known as sodium iodide. It is commonly used in nuclear medicine for imaging procedures.
The formula unit for sodium iodide is NaI, where Na represents sodium and I represents iodine. This formula indicates that each unit of sodium iodide contains one sodium ion and one iodide ion.
The chemical formula of sodium iodide is NaI.
Sodium iodide is a compound composed of sodium and iodine, while sodium chloride is composed of sodium and chlorine. The main difference between the two is their chemical composition and properties. Sodium iodide is commonly used in medicine, while sodium chloride is widely known as table salt.
The melting point of sodium fluoride is higher than that of sodium iodide due to stronger ionic bonds in sodium fluoride. Fluoride ions (F⁻) are smaller and have a higher charge density compared to iodide ions (I⁻), leading to stronger electrostatic attractions between the Na⁺ and F⁻ ions. This stronger attraction results in a more stable crystal lattice in sodium fluoride, requiring more energy to break the bonds during melting. In contrast, the larger size and lower charge density of iodide ions result in weaker ionic interactions in sodium iodide.
The higher melting point of sodium fluoride compared to sodium iodide is due to stronger forces of attraction between the ions in the crystal lattice of the fluoride compound. Fluoride ions are smaller and have a higher charge density compared to iodide ions, leading to stronger electrostatic forces between the ions in sodium fluoride, resulting in a higher melting point.
Melting point. 661 °C, 934 K, 1222 °F.Boiling point. 1304 °C, 1577 K, 2379 °F
The ionic compound of sodium iodide is NaI. It is composed of sodium (Na+) ions and iodide (I-) ions held together by ionic bonds.
The IUPAC name for sodium iodide is sodium iodide.
Naphthalene can be separated from sodium chloride by sublimation. When the mixture is heated, naphthalene will sublimate, turning from a solid to a gas, and can be collected separately from the solid sodium chloride.
Sodium iodide
You can separate a mixture of iodine solid and sodium iodide by using the difference in solubility of the two compounds. Since sodium iodide is soluble in water while iodine is not, you can dissolve the mixture in water to dissolve the sodium iodide, leaving the solid iodine behind. The two can then be separated by filtration.
The formula for sodium iodide is NaI. It is formed by the combination of sodium (Na) and iodide (I-) ions, with sodium donating an electron to iodine to form a stable compound.
Sodium iodide is a compound and that is its name.
Sodium iodide is an ionic compound. It is composed of sodium cations (Na+) and iodide anions (I-), which are held together by ionic bonds formed through the transfer of electrons from sodium to iodine.