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Hi:) I have some questions regarding solubility.Question 1:

Match each compound with the correct process it will undergo if placed in water.

  • C3H7OH (l)
  • HBr (aq)
  • Li2SO3 (s)
  • H2SO4 (aq)
  • Ba(IO3)2(s)
  • CuOH (aq)

1.Dissociate

2.Dissolve

3.Ionize

4.Insoluble


Question 2:

Choose the correct dissociation equation for lithium chloride

  • LiCl(s) → Li+(aq) + Cl-(aq)
  • LiCl2(s) → Li2+(aq) + 2 Cl-(aq)
  • LiCl(s) → Li+(s) + Cl-(s)
  • LiCl(s) → Li2+(aq) + Cl2-(aq)


Question 3:

Your favourite Chemistry 20 teacher performed the following lab. Use the evidence provided to complete the analysis part of this experiment.


Experimental Design: Using conductivity, litmus paper, flame tests, and solution colours, substances will be identified after evidences are collected.


Procedure: Use the empirical evidence provided to determine the identity of the 10 unknown solutions from the list of 14 solutions provided. Each unknown may be used only once. There will be 4 solutions with no matches.

3DD8FB38-69E5-4FD7-902F-CA6DFB3866A0.jpeg

  1. iron (III) chloride
  2. copper (II) chloride
  3. potassium chloride
  4. glucose
  5. calcium chloride
  6. strontium chloride
  7. potassium permanganate 
  8. barium hydroxide
  9. lead (II) chloride
  10. acetic acid
  11. sulfuric acid
  12. sodium hydroxide
  13. nickel (II) chloride
  14. lithium hydroxide


Question 4:

In another experiment, students collected the following solubility data. Match the 5 unknown solutions with the correct solubility test results. Each solution may only be used once.

9E0D1DBC-68D6-40D3-931B-F2D0D7A0449F.jpeg

  1. MgCl2(aq)
  2. Ca(IO3)2(aq)
  3. (NH4)3PO4(aq)
  4. CuF(aq)
  5. CuF2(aq)

Image transcriptions

Conductivity Red Blue Flame Solution Litmus Litmus Test Colour yes R B red none Conductivity Red Blue Flame Solution Litmus Litmus Test Colour yes R B violet purple Conductivity Red Blue Flame Solution Litmus Litmus Test Colour yes R B yellowish red none Conductivity Red Blue Flame Solution Litmus Litmus Test Colour yes R B none yellowish orange Conductivity Red Blue Flame Solution Litmus Litmus Test Colour yes R B bluish white none Conductivity Red Blue Flame Solution Litmus Litmus Test Colour no R B none none Conductivity Red Blue Flame Solution Litmus Litmus Test Colour R bluish yes B green blue Conductivity Red Blue Flame Solution Litmus Litmus Test Colour yes R B violet none Conductivity Red Blue Flame Solution Litmus Litmus Test Colour weak R R none none Conductivity Red Blue Flame Solution Litmus Litmus Test Colour yes B B yellowish green none

Reaction Reaction Reaction Reaction with with with with Na2SO4(aq) AgNO3(aq) NaOH(aq) NaCl(aq) none none precipitate none Reaction Reaction Reaction Reaction with with with with Na2SO4(aq) AgNO3(aq) NaOH(aq) NaCl(aq) precipitate precipitate precipitate none Reaction Reaction Reaction Reaction with with with with Na2 SO4(aq) AgNO3(aq) NaOH(aq) NaCl(aq) none none precipitate precipitate Reaction Reaction Reaction Reaction with with with with Na2SO4(aq) AgNO3(aq) NaOH(aq) NaCl(aq) none precipitate none none Reaction Reaction Reaction Reaction with with with with Na2SO4(aq) AgNO3(aq) NaOH(aq) NaCl(aq) none precipitate precipitate none

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Subject: Chemistry, Science
Conductivity Red Blue Flame Solution Litmus Litmus Test Colour yes R B red none Conductivity Red Blue Flame Solution Litmus Litmus Test Colour yes R
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