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The ion-ion bond in CaSO4 is stronger than in NaCl because of the higher charges on the cation and anion.
Be careful in making this argument. The ion-dipole forces of Ca2+ -H2O and SO42- - H2O might actually be stronger than that of Na+ -H2O and Cl- -H2O due to the high charges on Ca2+ and SO42- . However the strengths of the ions-dipole interactions do not match (or exceed) the strength of the Ca2+ -SO42- ionic bond.
What else can I help you with?
Why is sodium chloride soluble in water but not in alcohol?
when u put sodium chloride in water it ionizes to Na+ and Cl- which interact in water with OH- and H+ respectively but since alcohol which is ROH (R is for alkyl group) as a solvent is slightly more hydrophobic than water(because of presence of alkyl group) can not do so.
Suggest reasons why recrystallization from water would probably not be suitable procedure for purifying nacl caco3 c2h6o?
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.
Why NaCl is very soluble but not CaO is only slightly soluble in water?
Its all to do with enthlapy and entropy. Anything which is soluble usually has a negative standard enthlapy of solution - the energy involved when 1 mole of solute dissolves in a solvent to give an infinately dilute solution. However, NaCl has a slightly positive enthalpy of solution, yet it dissolves. The reason for this is entropy - the change in the amount of disorder. When NaCl dissolves in solution, there is more chaos, more molecules within the solution. Any process that has a large positive entropy change will be favourable - spontaneous and can occur (reaction will 'go'). However, with CaO, the Ca2+ formed in solution has a high affinity (attraction to) for water molecules, hence a lot of water molecules are arranged orderly - less chaos and hence a negative entropy. This should in effect make the compound insoluble, however, the slight solubility is due to it still having a negative enthalpy change of solution - hence despite entropy it is still slightly soluble. (You may be asking how is dissolving CaO possible if entropy is negative? The entropy of the system maybe negative, but the entropy of the surroundings is positive (dissolving gives out heat - exothermic), hence the overall entropy (sum of both entropies) is positive and the reaction will 'go'.
Which is more soluble in water oxygen or carbon dioxide?
Carbon dioxide is more soluble in water than oxygen. Carbon dioxide forms carbonic acid in water, which increases its solubility. Oxygen is less soluble in water but is still able to dissolve to some extent.
Is zinc picolinate water soluble?
Zinc picolinate is a water-soluble form of zinc. Picolinic acid, the compound to which zinc is bound in zinc picolinate, is water-soluble. This allows for better absorption of zinc in the body compared to other forms of zinc that are less water-soluble. Therefore, zinc picolinate is a popular choice for supplementation to support overall health and immune function.
Why nacl is less soluble in heavy water than in water?
Sodium chloride (NaCl) is less soluble in heavy water (D2O) compared to regular water (H2O) because the heavier isotopic composition of deuterium in heavy water disrupts the ionic interactions between Na+ and Cl- ions, resulting in weaker solvation and lower solubility. The increased mass of deuterium also alters the hydrogen bonding network in heavy water, which further hinders the dissolution of NaCl.
Is calcium fluoride soluble in water?
Yes, but much less so than NaCl for example. --PhD in materials science.
What is the pH of CaSO4?
well i guess that the ph of CaSO4 is less than 7
Which sugar is less soluble in water?
Sugars with increasing carbon units tends to be less soluble in water like polysaccharides.
Is oil soluble in water at elevated temp?
I think oil will be less soluble in water at elevated temperatures.
Why wax is more stable in water and unstable towards heat but NaCl solid is less stable in water but highly stable in heat?
Wax is an organic molecule made up of nonpolar covalent bonds. So it is not soluble in water and has a reasonable melting point. NaCl is an inorganic salt made of ionic bonds. Because water is polar it can dissolve NaCl. Ionic bonds are very strong though, and so it has a high melting point.
When will salt become less soluble in water?
When raises
Why is sodium chloride soluble in water but not in alcohol?
when u put sodium chloride in water it ionizes to Na+ and Cl- which interact in water with OH- and H+ respectively but since alcohol which is ROH (R is for alkyl group) as a solvent is slightly more hydrophobic than water(because of presence of alkyl group) can not do so.
Is calcium hypochlorite soluble?
It has very less water solubility
Why is glucose more soluble in water than cyclohexanol?
Glucose is more soluble in water than cyclohexanol because glucose is polar. In contrast, cyclohexanol is mostly nonpolar and therefore less soluble in water.
Why are glycerophospholipids more soluble in water than tricylglycerols?
Glycerophospholipids have a polar head group that interacts with water molecules, making them soluble in water. Triglycerides lack this polar head group, which makes them less soluble in water.
Which type of compound is typically soluble in water?
Ionic compounds are typically soluble in water, as they can dissociate into ions when in solution, allowing them to interact with the polar water molecules. Covalent compounds, especially those with nonpolar bonds, are generally less soluble in water.
