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Why lattice energy of nacl is greater then kcl and kbr?
Lattice energy increases with greater charge and smaller size. Since the charges are the same for both compounds, you have to look at the sizes of the atoms, K and Na, and since both have Cl, you don't have to compare that with anything. K is larger than Na, so since NaCl has a smaller size and the same charge, it has higher lattice energy.
Can lattice space of NaCl crystal be determined by diffraction experiment with sodium yellow light?
No, the lattice spacing of a NaCl crystal cannot be determined with sodium yellow light alone because the wavelength of light used for diffraction needs to match the spacing between planes in the crystal lattice. Since the lattice spacing of NaCl is much smaller than the wavelength of sodium yellow light, other types of radiation such as X-rays are typically used for diffraction experiments to accurately determine the lattice spacing.
Why is the lattice energy of potassium bromide more exothermic than the lattice energy of rubidium iodide?
The lattice energy of potassium bromide is more exothermic than that of rubidium iodide because potassium and bromine have smaller atomic sizes and higher charges, which leads to stronger ionic bonding in potassium bromide. Rubidium and iodine have larger atomic sizes and lower charges, resulting in weaker ionic bonding in rubidium iodide. The stronger ionic bonding in potassium bromide requires more energy to break, resulting in a more exothermic lattice energy.
Why is the boiling point of NaCl higher than sucrose?
Nacl is a salt and forms ions in the solution Na+ Cl- , in other words it has 2 molecules dissociated. On the other hand Sucrose does not dissociate it stays as one mole of sugar. This is why the boiling point of Nacl is higher then Sucrose.
Does calcium oxide have a higher lattice energy than magnesium oxide?
Yes, calcium oxide has a higher lattice energy than magnesium oxide. This is due to the higher charge of the calcium ion compared to the magnesium ion, leading to stronger electrostatic attraction between the ions in the lattice structure.
Why lattice energy of nacl is greater then kcl and kbr?
Lattice energy increases with greater charge and smaller size. Since the charges are the same for both compounds, you have to look at the sizes of the atoms, K and Na, and since both have Cl, you don't have to compare that with anything. K is larger than Na, so since NaCl has a smaller size and the same charge, it has higher lattice energy.
When is lattice energy greater than hydration energy?
Lattice energy is greater than hydration energy when the overall energy released during the formation of the crystal lattice (lattice energy) is higher than the energy absorbed during the separation of ions from the lattice by water molecules (hydration energy). This typically occurs for highly charged ions that form strong ionic bonds and have a high charge-to-size ratio.
Why does NaCl have a high melting point than KCl?
This can be rationalised by looking at the lattice energy. Using Madelungs method the smaller Na+ ion causes a stronger coulombic attraction making it harder to beak up the lattice and increasing the mp.
Can lattice space of NaCl crystal be determined by diffraction experiment with sodium yellow light?
No, the lattice spacing of a NaCl crystal cannot be determined with sodium yellow light alone because the wavelength of light used for diffraction needs to match the spacing between planes in the crystal lattice. Since the lattice spacing of NaCl is much smaller than the wavelength of sodium yellow light, other types of radiation such as X-rays are typically used for diffraction experiments to accurately determine the lattice spacing.
Why do sugar dissolve faster then salt in water?
For dissolving any solute the solvation energy of the solvent has to be more than the lattige energy of the solute. In this case the lattice energy of Nacl[salt] is more than that of sugar. Hence it takes more time to dissolve in water. ---- Akashraj Ghosh.
Is iron carbonate a soluble salt?
Its Lattice energy is greater than the solvation energy of water.
Why is the lattice energy of potassium bromide more exothermic than the lattice energy of rubidium iodide?
The lattice energy of potassium bromide is more exothermic than that of rubidium iodide because potassium and bromine have smaller atomic sizes and higher charges, which leads to stronger ionic bonding in potassium bromide. Rubidium and iodine have larger atomic sizes and lower charges, resulting in weaker ionic bonding in rubidium iodide. The stronger ionic bonding in potassium bromide requires more energy to break, resulting in a more exothermic lattice energy.
Why is the boiling point of NaCl higher than sucrose?
Nacl is a salt and forms ions in the solution Na+ Cl- , in other words it has 2 molecules dissociated. On the other hand Sucrose does not dissociate it stays as one mole of sugar. This is why the boiling point of Nacl is higher then Sucrose.
Why is lattice energy of MgF2 greater than MgCl2?
since ca2+ has a larger atomic radii compared to Mg2+ (and the same for F and CL2), the electrons are dispersed over a wider surface area and so have a lesser strength than that of magnesium. Hence, with a smaller atomic radii, Magnesium has stronger attractive forces with require more energy to be broken and therefore making it more exothermic than calcium.
Does calcium oxide have a higher lattice energy than magnesium oxide?
Yes, calcium oxide has a higher lattice energy than magnesium oxide. This is due to the higher charge of the calcium ion compared to the magnesium ion, leading to stronger electrostatic attraction between the ions in the lattice structure.
What can you say about the relative magnitudes of the lattice energy of lithium iodide and its heat of hydration?
The lattice energy of lithium iodide is typically larger than its heat of hydration. This means that more energy is required to break the ionic bonds in the solid lattice of lithium iodide than is released when the ions are hydrated in solution.
Which has higher lattice energy AgCl and AgBr?
AgCl has a higher lattice energy than AgBr because Cl- is a smaller ion than Br-, resulting in stronger electrostatic interactions in AgCl.
