Q64 AP ... [FREE SOLUTION]

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Chapter 16: Q64 AP (page 692)

Short Answer

Expert verified

$(K_{sp}) {BaCO}_{3} = 4.9 \times 10^{- 10}$

Step by step solution

Step-by-Step SolutionStep 1: Concentration of CaCO3

Dissolution of CaCO3

Solubility product

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Most popular questions from this chapter

When 40.0 mL of 0.0800 M Sr (NO₃)₂ and 80.0 mL of 0.0500 M KF are mixed, a precipitate of strontium fluoride ( SrF₂ ) is formed. The solubility product K_sp of strontium fluoride in water at 25°C is $2.8 \times 10^{- 9}$ . Calculate the [ Sr²⁺] and [ F^-] remaining in solution at equilibrium.

Question:Suppose 50.0 mL of a 0.0500 M solution of is mixed with 40.0 mL of a 0.200 M solution of ${NaIO}_{3}$ at 25⁰C . Calculate the $[{Pb}^{2 +}]$ and $[I {O_{3}}^{-}]$ when the mixture comes to equilibrium. At this temperature, Ksp for $Pb {({IO}_{3})}_{2}$ is $2.6 \times 10^{- 13} .$

Question: (a) Calculate the solubility of calcium oxalate ${(CaC}_{2} O_{4})$ in 1.0 M oxalic acid ${(H}_{2} C_{2} O_{4})$ at 25⁰C, using the two acid ionization constants for oxalic acid from Table and the solubility product $K_{S P} = 2.6 \times 10^{- 9} f o r {CaC}_{2} O_{4}$ .

(b) Calculate the solubility of calcium oxalate in pure water at 25⁰C .

$K_{sp}$ for $Pb {(OH)}_{2}$ is $4.2 \times 10^{- 15}$ ,and $K_{f}$ for $Pb {(OH)}_{3}^{-}$ is $4 \times 10^{14}$ . Suppose a solution whose initial concentration of ${Pb}^{2 +} (aq)$ is 1.00 M is brought to pH 13.0 by addition of solid NaOH. Will solid $Pb {(OH)}_{2}$ precipitate, or will the lead be dissolved asdata-custom-editor="chemistry" $Pb {(OH)}_{3}^{-}$ ? What will be ${Pb}^{2 +}$ and $Pb {(OH)}_{3}^{-}$ at equilibrium? Repeat the calculation for an initial ${Pb}^{2 +}$ concentration of 0.050 M.

Gypsum has the formula ${CaSO}_{4} . 2 H_{2} O$ . Plaster of Paris has the chemical formula ${CaSO}_{4} . \frac{1}{2} H_{2} O$ . In making wall plaster, water is added to plaster of Paris and the mixture then hardens into solid gypsum. How much water (in liters, at a density of $1.00 {kgL}^{- 1}$ ) should be added to 25.0 kg of plaster of Paris to turn it into gypsum, assuming no loss from evaporation?

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Short Answer

Step by step solution

Step-by-Step SolutionStep 1: Concentration of CaCO3

Dissolution of CaCO3

Solubility product

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Most popular questions from this chapter

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