What is the difference between carbon dioxide, and silicon dioxide? How do we formulate the solubility product for the salt #A_2B_3#

Answer 1
  1. Carbon dioxide is a molecular species; silicon dioxide is non-molecular.
  2. #K_(sp) = [A]^2[B]^3#
As you know, carbon dioxide and silicon dioxide are isoelectronic. They are not isostructural. The shortness of the (first-row) #C-O# bonds allows effective overlap between the p -orbitals of #C# and #O#, in addition to the strong #sigma# bond formed. The result is a #C=O# double bond. On the other hand, the corresponding p -orbitals on second row #Si# are too diffuse to allow effective #pi# bonding between #Si# and #O#, with the result that #O# bridges to another silicon to form an infinite array of #Si-O-Si-O# bridges that have no molecular boundary.
As to your #A_2B_3# salt, do you mean a salt of the form such as calcium phosphate, i.e. #Ca_3(PO_4)_2#? Such a salt would be particularly insoluble (as are most phosphates).

We would write the equation for its dissolution in water for as:

#Ca_3(PO_4)_2(s) rarr 3Ca^(2+)(aq) + 2PO_4^(3-)(aq)#

The solubility constant is as standard, the concentrations of the ions raised to the power of their stoichiometric coefficients:

#K_(sp) = [PO_4^(3-)]^2[Ca^(2+)]^3#

Alternatively, consider the solubility of ferric sulfate:

#Fe_2(SO_4)_3(s) rarr 2Fe^(3+) + 3SO_4^(2-)#
#K_(sp) = [Fe^(3+)]^2[SO_4^(2-)]^3#

This should not be too water soluble, but check this.

If this is not want you wanted I apologize.

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Answer 2

Carbon dioxide (CO2) and silicon dioxide (SiO2) are both chemical compounds, but they differ in their chemical composition and properties. CO2 is a gas composed of one carbon atom bonded to two oxygen atoms, while SiO2 is a solid compound composed of one silicon atom bonded to two oxygen atoms.

The solubility product (Ksp) for the salt A2B3 can be formulated using the equilibrium expression for the dissociation of the salt into its ions, A^2+ and B^3-. The expression is written as:

Ksp = [A^2+]^2[B^3-]^3

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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