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Solubility

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Wize University Chemistry Textbook > Other Examples of Equilibria (ex. Solubility)

Does a Precipitate Form?

8 Activities

Wize University Chemistry Textbook > Chemical Reactions

Solubility Rules and Precipitation

4 Activities

Which of the following correctly describes what happens when aqueous solutions of ammonium carbonate, (NH4)2CO3, and potassium bromide, KBr, are mixed?
More Does a Precipitate Form? Questions:
Solubility
Which of the following correctly describes what happens when aqueous solutions of ammonium carbonate, (NH4)2CO3, and potassium bromide, KBr, are mixed?
Solubility: Predicting precipitation
Predicting Whether a Precipitate will Form or Not - Concept Clarifier
Does a precipitate of PbBr2 form if 50.0 mL of 0.0100 M Pb(NO3)2 is mixed with 50.0 mL of 0.100 M NaBr? (Ksp PbBr2 = 2.1 x 10-6)
More Solubility Rules and Precipitation Questions:
Practice: Ranking Solubilities
You have a series of beakers, each containing 100 mL of a different solution. If you added nickel (II) hydroxide (Ni(OH)2) to each of the beakers, rank them in order of the relative solubility of the Ni(OH)2 in each:
𝑁𝑖(𝑂𝐻)2(𝑠)⇌𝑁𝑖2+(𝑎𝑞)+2𝑂𝐻−(𝑎𝑞)𝐾𝑠𝑝=6.0×10−16𝑁𝑖(𝑂𝐻)_2 (𝑠) ⇌𝑁𝑖^{2+} (𝑎𝑞)+2𝑂𝐻^− (𝑎𝑞) \qquad \qquad 𝐾_{𝑠𝑝}=6.0×10^{−16}
Additional Data:
A student adds some CuBr (s) (Ksp = 6.3x10−9) to each of the flasks shown here.
Assume that any salts in each flask were fully dissociated before CuBr(s) was added.
Additional data:
Solubility
Which of the following compounds is soluble in water at 25 °C?
Solubility: Dissociation of ions
What ions does Na2CO3 dissociate into in water?
Solubility
Which of the following compounds is soluble in water at 25 °C?
Solubility
Which of the following correctly describes what happens when aqueous solutions of ammonium carbonate, (NH4)2CO3, and potassium bromide, KBr, are mixed?
Does a precipitate form if Pb(NO3)2 is mixed with NaBr?
Solubility
If we mixed KCl(aq) and Pb(ClO3)2(aq) would a precipitate form? If yes, name the precipitate.
Enter the answer as either no or yes, chemical formula of precipitate
Solubility
If we mixed 2AgNO3(aq) and MgBr2 would a precipitate form? If yes, what would the precipitate be?
Enter answer as either no or yes, chemical formula of precipitate.
Does a precipitate form if Pb(NO3)2 is mixed with NaBr?
Enter no or yes, name of formula of precipitate
For PbCl2 (Ksp = 2.4 x 10–4), will a precipitate of PbCl2 form when 0.10 L of 3.0 x 10-2 M Pb(NO3)2 is added to 400 mL of 9.0 x 10-2 M NaCl?
If 4.5g of NaCl are added to a 2.0 L saturated solution of AgCl, what mass of AgCl(s) will precipitate? Ksp for AgCl is 1.7 x 10-17
Solubility: Rules and mechanisms
You have a series of beakers, each containing 100 mL of a different solution. If you added nickel (II) hydroxide (Ni(OH)2) to each of the beakers, rank them in order of the relative solubility of the Ni(OH)2 in each:
𝑁𝑖(𝑂𝐻)2(𝑠)⇌𝑁𝑖2+(𝑎𝑞)+2𝑂𝐻−(𝑎𝑞)𝐾𝑠𝑝=6.0×10−16𝑁𝑖(𝑂𝐻)_2 (𝑠) ⇌𝑁𝑖^{2+} (𝑎𝑞)+2𝑂𝐻^− (𝑎𝑞) \qquad \qquad 𝐾_{𝑠𝑝}=6.0×10^{−16}
Additional Data:
Solubility: Will a Precipitate Form?
The Ksp for strontium fluoride SrF2 is 4.3x10−9. If 5.0 x10−6 mol of NaF (s) are added to 10.0 mL of 1.5x10−3 M Sr(NO3)2, will a precipitate form? Assume that any sodium salts or nitrate salts fully dissociate in water.
The Ksp for CuBr is 6.3x10−9. When 1.00 mL of 0.0010 M CuNO3 is mixed with 1.00 mL of 0.0010 M NaBr, will a precipitate form? Assume that any sodium salts or nitrate salts fully dissociate in water.
Which of the following would decrease the Ksp for PbI2?
For PbCl2 (Ksp = 2.4 x 10–4), will a precipitate of PbCl2 form when 0.10 L of 3.0 x 10-2 M Pb(NO3)2 is added to 400 mL of 9.0 x 10-2 M NaCl?
A student adds some CuBr (s) (Ksp = 6.3x10−9) to each of the flasks shown here.
Assume that any salts in each flask were fully dissociated before CuBr(s) was added.
Additional data:
Solubility: Practice
A student is preparing to test the molar solubility of PbHPO4 (s) (Ksp=3.5×10−12) in different aqueous solutions. When this salt dissociates, it produces Pb2+ (aq) and the amphiprotic ion HPO42− (aq). They prepare separate beakers with 100 mL of each of the following solutions to test:
water
0.1 M Pb(NO3)2 (aq) (which fully dissociates in water)
Molecular bonding: Physical Properties
Consider two liquids: pentane, C5H12, and a light mineral oil, C12H26.
a. In the table below identify which liquid is being described.
b. A student observed that a drop of water spreads on a glass surface while on a paraffin coated glass surface it beads. The student’s explanation for this is: “The interaction between water and paraffin is strong because it forms a bead.” Is the student correct or incorrect? Explain
Solubility and Equilibrium
Does a precipitate of PbBr2 form if 50.0 mL of 0.0100 M Pb(NO3)2 is mixed with 50.0 mL of 0.100 M NaBr? (Ksp PbBr2 = 2.1 x 10-6)
Solubility
A student is preparing to test the molar solubility of PbHPO4 (s) (Ksp=3.5×10−12) in different aqueous solutions. When this salt dissociates, it produces Pb2+ (aq) and the amphiprotic ion HPO42− (aq).They prepare separate beakers with 100 mL of each of the following solutions to test:
water
0.1 M Pb(NO3)2 (aq) (which fully dissociates in water)