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If a substance x has a solubility of 2. 4×10^−5 mg/l, and a molar mass of 188 g/mol. What is the molar solubility of the substance?

Sagot :

The molar solubility of the substance is  1.2 × [tex]10^{-10}[/tex]  M if a substance x has a solubility of 2. 4 × [tex]10^{-5}[/tex]  mg/l, and a molar mass of 188 g/mol.

Calculation ,

The number of moles dissolve in one liter of solution is called molar solubility.

Given Solubility = 2.4 × [tex]10^{-5}[/tex] mg/L

Solubility = 2.4 × [tex]10^{-5}[/tex]  × [tex]10^{-3}[/tex]   g/L = 2.4 × [tex]10^{-8}[/tex]   g/L

Molar mass = 188 g/mol

Molar Solubility = 2.4 × [tex]10^{-8}[/tex]   g/L / 188 g/mol = 0.012 × [tex]10^{-8}[/tex]   mol/L

Molar Solubility = 1.2 × [tex]10^{-10}[/tex]  M

Therefore ,  the molar solubility of the substance is 1.2 × [tex]10^{-10}[/tex]  M

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