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  • Chemistry Question?

    Indicate whether the substance in solution becomes more soluble or less soluble in the conditions described. Explain why you think so.

    1. AgCl if HCl is added

    2. Ag2CO3 if AgNO3 is added

    3. PbSO4 if NaOH is added

    4. BaF2 if HF is added

    5. Cu(OH)2 if NH3 is added

    6. CdS if KCN is added

    7. Bi2S3 if acid and H2S are added

    8. Al(OH)3 if a Lewis base is added

    9. CoCl2 if HCl is added

    10. Fe(OH)2 if NH3 is added

    1 AnswerChemistry9 hours ago

  • Chemistry questions?

    If 2.00 mL of 0.200 M NaOH are added to 1.00 L of 0.100 M CaCl2, will a precipitate form? (3)

    Ksp of Ca(OH)2 is 8.0 x 10-6 Assume both the base and the salt will dissociate completely. Don’t forget to calculate Q.

    1 AnswerChemistry1 week ago

  • Chemistry questions?

    Which of the following would cause a decrease in the percent ionization of a solution of hydrofluoric acid (HF) at equilibrium? You should also explain why. (Hint: Write the chemical equation for the ionization of HF.) 

     a) KF

     b) H2O

     c) CaF2

     d) HCl

    1 AnswerChemistry1 week ago

  • Chemistry questions?

    3. For which of the following titrations will the pH at the equivalence point NOT be neutral? Explain why. (Hint: Determine the relative strengths of the acids and bases in the titration.) 

     a) HNO2 by NaOH

     b) KOH by HClO4

     c) HCOOH by KOH

     d) CH3NH2 by HNO3

    1 AnswerChemistry1 week ago