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For the reaction
(a) calculate K. (Ksp for CdC2O4 is
(b) calculate [NH3] at equilibrium when 2.00 g of CdC2O4 are dissolved in 1.00 L of solution.
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Chapter 15 Solutions
CHEMISTRY:PRIN.+REACTIONS-OWLV2 ACCESS
- (a) In the determination of chloride by the Mohr method, what will be the equilibrium concentration of silver ions in mg/L., on the basis of the solubility product principle, when the chloride concentration has been reduced to 0.2 mg/L? (b) If the concentration of chromate indicator used is 5 x 10 M, how much excess silver ion in mg/L. must be present before the formation of a red precipitate will begin?arrow_forwardThe preparation of cis-platin [Pt(NH 3) 2CI 2], an anticancer drug, uses an equilibrium reaction: K 2PECI 4(aq) + 2NH 3(aq) = 2 KCI(aq) + Pt(NH 3) 2CI 2(aq). Which of the following conditions would lead to an increase in the amount of Pt(NH 3) 2CI 2 formed? The use of a low concentration of NH3 The addition of a large concentration of KCI The use of a large concentration of NH3 The use of a stoichiometric ration of K2PTCI4 and NH3arrow_forwardfor the reaction 4PH ₂3 (9) 6 H₂₂ (9) + P4 (9) the equilibrium concentrations were found to be [PH3] = 0.250M, [#₂] = 0.370 M, and [P4]=0.750 M. what is the equilibrium constant for this reaction?arrow_forward
- (ii) Calculate the pH of a 0.250 M solution of a weak acid with Ka = 2.5 x 107 [HA] [H'] (A'] initial change equilibriumarrow_forward1) Gallium hydroxide, Ga(OH)3, has a KSP of 7.28x10-36. Ga(OH)3(s) ⇌ Ga3+(aq) + 3OH-(aq)Under which circumstance will the [Ga3+] be the highest? Justify your answer.A) Dissolved into 1.00 L distilled waterB) Dissolved into 1.00 L of 1.00 M HClC) Dissolved into 1.00 L of 1.00 M NaOHarrow_forwardThe Kf for the dicyanosilver complex ion, [Ag(CN)2]-, is 5.6 x 1018. When solid NaCN is added to a 0.010 M solution of AgNO3, 0.50 M CN- was found to be present at equilibrium. Calculate the concentration of silver ion also present at equilibrium.arrow_forward
- (a) Given the Ksp of calcium phosphate, Ca3(PO4)2 is 1.3 × 1032. Calculate concentrations of Ca2+ and PO43− respectively. (b) If a hard water contains 75 mg/L of Ca2+, at what concentration of PO43- would a precipitate of Ca3(PO4)2 begin to appear?arrow_forwardPart 1 out of 4 (a) Write equilibrium constant expressions for Kc for the following process. 2CO2(g) 2CO(g) + O2(g) Kc=arrow_forwardIn an aqueous chloride solution cobalt(II) exists in equilibrium with the complex ion CoClą2-. Co2+(aq) is pink and CoCl42-(aq) is blue. At Low Temperature the pink color predominates. At High Temperature the blue color is strong. If we represent the equilibrium as: Coclą2 (aq) = Co2*(aq) + 4CI(aq) We can conclude that: 1. This reaction is: A. Exothermic B. Endothermic C. Neutral D. More information is needed to answer this question. 2. When the temperature is increased the equilibrium constant, K: A. Increases B. Decreases C. Remains the same D. More information is needed to answer this question. 3. When the temperature is increased the equilibrium concentration of Co2+: A. Increases B. Decreases C. Remains the same D. More information is needed to answer this question.arrow_forward
- Because of the toxicity of mercury compounds, mercury(I)chloride is used in antibacterial salves. The mercury(I) ion(Hg₂²⁺) consists of two bound Hg⁺ ions.(a) What is the empirical formula of mercury(I) chloride?(b) Calculate [Hg₂²⁺] in a saturated solution of mercury(I) chlo-ride (Ksp=1.5X10⁻¹⁸).(c) A seawater sample contains 0.20 lb of NaCl per gallon. Find[Hg₂²⁺] if the seawater is saturated with mercury(I) chloride.(d) How many grams of mercury(I) chloride are needed to satu-rate 4900 km³ of pure water (the volume of Lake Michigan)?(e) How many grams of mercury(I) chloride are needed to satu-rate 4900 km³ of seawater?arrow_forwardplease explain eacharrow_forward1) The following reaction was allowed to reach equilibrium at 25oC. Enclosed with the phase of each species is the equilibrium concentration. Calculate the equilibrium constant (Kc and Kp) for this reaction. 2 NOCl(g, 2.6 M) = 2 NO(g, 1.4 M) + Cl2(g, 0.34 M) 2) Calculate the pH of a 0.10 M hypochlorous acid solution. Ka = 3.5 x 10-8.arrow_forward
- Chemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningGeneral Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage Learning
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