Which one of the following equilibrium systems is described by Ksp? Ca(OH)2(aq) + H2CO3(aq) ⇄ CaCO3(s)...
Which one of the following equilibrium systems is described by Ksp?
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Ca(OH)2(aq) + H2CO3(aq) ⇄ CaCO3(s) + 2H2O(l) |
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MgCO3(s) ⇄ CaO(s) + CO2(g) |
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Ca 2+(aq) + CO32- (aq) ⇄ CaCO3(s) |
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MgCO3(s) ⇄ Mg 2+(aq) + CO32- (aq) |
Homework Answers
In Ksp equation,
A solid should dissociate into corresponding to ions.
On reactant side, there should be only one solid.
On product side, there should be its ions in quests form.
This equation is shown by option 4:
MgCO3(s) <-> Mg2+(aq) + CO32-(aq)
Answer: MgCO3(s) <-> Mg2+(aq) + CO32-(aq)
Add Answer to:
Which one of the following equilibrium systems is described by
Ksp?
Ca(OH)2(aq) + H2CO3(aq) ⇄
CaCO3(s)...
1. (35 pts) The following balanced chemical equations represent the use of lime [Ca(OH)2] for softening...
1. (35 pts) The following balanced chemical equations represent the use of lime [Ca(OH)2] for softening of drinking water. First step: lime added and all CO2 precipitates as CaCO3 Ca(OH)2 + + CO2 – CaCO3 + H20 Second step: more lime added and all Ca²+ and HCO3- precipitate as CaCO3 Ca(OH)2 + Ca²+ + 2HCO3 – 2CaCO3 + 2H20 Third step: more lime added and Mg2+ and HCO3 are converted to MgCO3 which does not precipitate (also more Cacos precipitate...
Which of the following reactions would ΔH = ΔE? 2Al(s) + 6HCl(aq) --> 2AlCl3(aq) + 3H2(g)...
Which of the following reactions would ΔH = ΔE? 2Al(s) + 6HCl(aq) --> 2AlCl3(aq) + 3H2(g) CaCO3(s) --> CaO(s) + CO2(g) C(s) + O2(g) --> CO2(g) C3H4(g) + 4O2(g) --> 3CO2(g) + 2H2O(l) Zn+2(aq) + 2OH-(aq) --> Zn(OH)2(s)
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Consider the following equilibrium reaction: CaCO3 (s) + CO2 (g) + H2O (l) ⇌ 2 HCO3- (aq) + Ca2+ (aq) Which of these species should be included in the equilibrium constant expression (K) for this reaction? Select all that apply A.) Ca2+ (aq) B.) CaCO3 (s) C.) H2O (l) D.) CO2 (g) E.) HCO3- (aq)
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CaCO3(s)<->CaO(s)+CO2(g) In which direction, if any, will equilibrium shift if NaOH (aq) is added to the...
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CaCO3 (s) ⇌ CaO (s) + CO2 (g) Given at equilibrium 2.5 g CaCO3; 1.35 g...
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Consider the following reaction at equilibrium, CaCO3(s) ↔ CaO(s) + CO2(g). Which of the following statements...
Consider the following reaction at equilibrium, CaCO3(s) ↔ CaO(s) + CO2(g). Which of the following statements are true regarding this equilibrium? Select all that are True. a) If CaO(s) is added from the equilibrium mixture the reaction will remain unchanged. b) If CaO(s) is removed from the equilibrium mixture the reaction will shift to the left. c) If CO2(g) is added to the equilibrium mixture the reaction will shift to the right. d) If CO2(g) is added to the equilibrium...
1. (35 pts) The following balanced chemical equations represent the use of lime [Ca(OH)2] for softening of drinking water. First step: lime added and all CO2 precipitates as CaCO3 Ca(OH)2 + + CO2 – CaCO3 + H20 Second step: more lime added and all Ca²+ and HCO3- precipitate as CaCO3 Ca(OH)2 + Ca²+ + 2HCO3 – 2CaCO3 + 2H20 Third step: more lime added and Mg2+ and HCO3 are converted to MgCO3 which does not precipitate (also more Cacos precipitate...
2. (10 pts) Given the following data Ca(s)2C(graphite)CaC2(s) -62.8 kJ OH635.5 Ca(s)1/202(g) CaO(s) kJ CaO(s)H20()- Ca(OH)2(aq) OH 653.1 kJ 2CO2(g)H2O(l OH1300 C2H2(g)5/202(g) kJ C(graphite) O2(g)CO2(g) H= -393.5 kJ calculateH for the reaction (show your work for full credit) CaC2(s)+ 2H20()- Ca(OH)2(aq) CH2(g)
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