Problem: Spontaneous dissolving under standard-state conditions at 25oC occurs with a mix ofA. CH2Cl2 & H2OB. Na2CO3 & H2OC. CaCO3 & methanolD. NaCl & hexane

FREE Expert Solution

Use “likes” dissolving “likes” → solvent can spontaneously dissolve the soluble solute if they share similar polarity

  • polar solute → polar solvent
  • nonpolar solute → nonpolar solvent


Use solubility rules for solutes:

  • Carbonates (CO32-→ insoluble except when with Group 1A ions (Li+, Na+, K+, etc.) and ammonium ion (NH4+)


  • polar solventsH2O and methanol
  • nonpolar solvent: hexane
  • polar solutesNa2CO3, CaCO3 (insoluble),  NaCl, 
  • nonpolar solutes: CH2Cl2
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Problem Details

Spontaneous dissolving under standard-state conditions at 25oC occurs with a mix of

A. CH2Cl2 & H2O

B. Na2CO3 & H2O

C. CaCO3 & methanol

D. NaCl & hexane

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