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What are the most likely particles present in Na Cl solutions and in sucrose solutions?
In water? If so - salt solution - the fllowing hydrated ions - H+, OH-, Na+, Cl- plus molecular H2O. Sugar solution - hydrated sugar molecules, molecular H2O and H+ and OH- hydrated ions
How many molecules present in unit cell of NaCl crystal?
There are four molecules present in the unit cell of a NaCl crystal. These consist of one Na+ ion and one Cl- ion, forming the basic repeating unit structure of the crystal lattice.
What happens on the molecular level when an ionic solid like NaCl dissolves?
When NaCl dissolves in water, the polar water molecules surround the Na+ and Cl- ions. The positive end of the water molecule (-) is attracted to the Cl- ion while the negative end of water molecule (+) is attracted to the Na+ ion. This breaks the ionic bonds between Na+ and Cl- ions and allows them to disperse in the water, resulting in the formation of a NaCl solution.
What happens at the molecular level when NaOH dissolves in HCl?
When NaOH dissolves in HCl, the NaOH molecules dissociate into Na+ and OH- ions, while the HCl molecules dissociate into H+ and Cl- ions. In the solution, the OH- ions from NaOH and the H+ ions from HCl combine to form water molecules. The Na+ and Cl- ions remain in the solution.
When struck with a sharp blow ionic compounds tend to what while metallic substances which are what change sharpe?
Ionic compounds tend to shatter when struck with a hammer. This is due to the crystal structure formed by an ionic compound, which is basically repeating units of negatively and positively charged ions in some sort of geometric arrangement. When struck, ions of similar charge and pushed next to each other. These ions repel and the whole crystal will then cleave apart along the crystal pattern. example: Left undisturbed NaCl crystal, right struck Na Cl :crys.tal breaks along crystal pattern Na Cl Na Cl Na Cl Cl Na Cl Na Cl Na Na Cl Na Cl Na Cl Na Cl Cl Na Cl Na Cl Na Cl Na Na Cl Na Cl Cl Na Metallic bonds are better pictured as an electron sea, where all the metal atoms that are participating are freely sharing electrons amongst each other. Because of this there are no localized charges to repel each other, making metallic bonds far less susceptible to shattering.
What are the most likely particles present in Na Cl solutions and in sucrose solutions?
In water? If so - salt solution - the fllowing hydrated ions - H+, OH-, Na+, Cl- plus molecular H2O. Sugar solution - hydrated sugar molecules, molecular H2O and H+ and OH- hydrated ions
How many atoms are in 12NaCl?
NaCl has 2 atoms, one of Na (sodium) and one of Cl (chlorine) The chemical formula says that there are 12 molecules of NaCl present so if there are 2 atoms in each molecule of NaCl, there are 24 atoms present.
What is present in salt?
The elements present in regular table salt are sodium (Na) and chlorine (Cl).
What element is present in salt?
The elements present in regular table salt are sodium (Na) and chlorine (Cl).
How many molecules present in unit cell of NaCl crystal?
There are four molecules present in the unit cell of a NaCl crystal. These consist of one Na+ ion and one Cl- ion, forming the basic repeating unit structure of the crystal lattice.
Is dissolving in water a physical or chemical change?
Physical (not chemical) changesNaCl(s) → Na+(aq) + Cl-(aq)Added:These are NOT chemical changes. In solid NaCl there are already Na+ and Cl- ions present in the (fully ionic)crystallic matrix. These ions are only separated by the water molecules. This is exactly what is called: 'dissolving'
How many atoms of each element are present in nacl?
1 Na and 1 Cl
Is dissolving salt in water a chemical or physical change?
Physical (not chemical) changesNaCl(s) → Na+(aq) + Cl-(aq)Added:These are NOT chemical changes. In solid NaCl there are already Na+ and Cl- ions present in the (fully ionic)crystallic matrix. These ions are only separated by the water molecules. This is exactly what is called: 'dissolving'
Is Dissolving salt in water a physical or chemical change'?
Physical (not chemical) changesNaCl(s) → Na+(aq) + Cl-(aq)Added:These are NOT chemical changes. In solid NaCl there are already Na+ and Cl- ions present in the (fully ionic)crystallic matrix. These ions are only separated by the water molecules. This is exactly what is called: 'dissolving'
How is the Value of i for NaCl is 2?
Because it ionizes into Na+ and Cl-, thus ONE mole or molecule of NaCl produces TWO moles or molecules, namely Na and Cl, thus i (the van't Hoff factor) is 2.
What is The expect value for 'i' for Na Cl is?
2: Na+, Cl-
What is a chemical equation for the dissociation of a soluble salt in water?
An example is the dissociation of NaCl in water: NaCl (s) -> Na+ (aq) + Cl- (aq). Here, NaCl breaks apart into its constituent ions, Na+ and Cl-, when dissolved in water due to the attraction between the ions and water molecules.
