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The salt As2S3 is a negatively charged salt. According to Hardy and Schulz rule, the ions having higher positive charge value will attract more negative charged ions. Here, Mg2+ has 2 positive ions where K+ has 1 positive ion. As the charge of Mg2+ is more, it'll attract more negative charged ions; so gravitational force will work downward and will easily settle down than K+. That's why MgCl2 is a better coagulant than KCl.
T. M. Ridwanul Haque
CurtisStriteAnswers
In order to coagulate, there must be more ions. There will be two ions when KCl dissociates (K⁺ and Cl⁻). But there will be three ions when MgCl₂ dissociates (Mg²⁺ and 2Cl⁻), also, there will be more charge on Mg (Mg²⁺) than when KCl dissociates.
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Why mgcl2 is better coagulant then kcl for As2S3?
In order to coagulate, there must be more ions. ... But there will be three ions when MgCl₂ dissociates (Mg²⁺ and 2Cl⁻), also, there will be more charge on Mg (Mg²⁺) than when KCl dissociates.
What has the largest formula mass LiCl NaCl KCl MgCl2.?
MgCl2 because although K has a higher mass than Mg, the Mg compound with Cl has two atoms of Cl not one.
What has a greater boiling point elevation when dissolved at a concentration of 1mol in water with NaCl or MgCl2?
In the same volume of water, one mole of MgCl2 will give rise to a greater boiling point elevation. This is explained by the fact that boiling point elevation is a colligative property, that is, the relative amounts of the constituents are important and not their identity. We can determine by inspection that, upon dissociation, more ions will be produced by MgCl2 than NaCl since there are more atoms in the MgCl2 molecule. So, for one mole of MgCl2, we will produce one mole of magnesium and two of chlorine (three total). For one mole of NaCl, we produce one mole each of potassium and chlorine. By employing the principle stated above, we can come to the correct conclusion.
Why is MgO not soluble in water?
the charge density of chloride ion is higher than hydroxyl ion so the solvolysis of chloride is more than hydroxyl.
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.
Why mgcl2 is better coagulant then kcl for As2S3?
In order to coagulate, there must be more ions. ... But there will be three ions when MgCl₂ dissociates (Mg²⁺ and 2Cl⁻), also, there will be more charge on Mg (Mg²⁺) than when KCl dissociates.
What has the largest formula mass LiCl NaCl KCl MgCl2.?
MgCl2 because although K has a higher mass than Mg, the Mg compound with Cl has two atoms of Cl not one.
Is NaCl has greater lattice energy than MgO?
because Mg and O have more electropositivity and electronegativity rspt. than Na and Cl atoms.
What has a greater boiling point elevation when dissolved at a concentration of 1mol in water with NaCl or MgCl2?
In the same volume of water, one mole of MgCl2 will give rise to a greater boiling point elevation. This is explained by the fact that boiling point elevation is a colligative property, that is, the relative amounts of the constituents are important and not their identity. We can determine by inspection that, upon dissociation, more ions will be produced by MgCl2 than NaCl since there are more atoms in the MgCl2 molecule. So, for one mole of MgCl2, we will produce one mole of magnesium and two of chlorine (three total). For one mole of NaCl, we produce one mole each of potassium and chlorine. By employing the principle stated above, we can come to the correct conclusion.
What is the product of the reaction between aluminum and magnesium?
Al(s) + MgCl2(aq) ==> no reaction or a very slow reaction. The reason being that Mg is more reactive than Al so Al will not readily displace/replace Mg. If the reaction occurs, it will be 2Al(s) + 3MgCl2(aq) ==> 2AlCl3(aq) + 3Mg(s)
Why is MgO not soluble in water?
the charge density of chloride ion is higher than hydroxyl ion so the solvolysis of chloride is more than hydroxyl.
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