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Study Resources (Chemistry)

41) When equal volumes of the indicated solutions are mixed, precipitation should occur only for: barium fluoride1.0 × 10-6 calcium carbonate2.8 × 10-9 calcium fluoride5.3 × 10-9 magnesium fluoride3.7 × 10-9 silver carbonate8.5 × 10-12 A) 2 × 10-5 M Ag+ + 2 × 10-5 M CO32- B) 2 × 10-4 M.
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61) Consider the following hypothetical equilibrium reaction: A2(g) + B2(g) ? 2AB(g)     where Kc =  The equilibrium constant for the reaction: 2 A2(g) + 2 B2(g) ⇔ 4 AB(g) is ________. A) B) Kc4 C) D) E) Kc2 62) Write the equilibrium constant expression for the following reaction: 2 KI(aq).
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31) Which of the following soil additives would best reduce the concentration of dissolved Fe3+ in ground water? A) lime [Ca(OH)2] B) saltpeter [KNO3] C) ferric chloride [FeCl3] D) ammonium nitrate E) ammonium sulfate 32) The solubility product constant of M2CrO4(s) is 7.11 × 10-15.  How many moles of M2CrO4(s).
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11) A nonspontaneous reaction can be made to occur by coupling it with a spontaneous reaction to form an overall spontaneous reaction. 12) Nonspontaneous reactions  and spontaneous reactions cannot be coupled.  13) A spontaneous process: A) will happen quickly. B) releases large amounts of energy. C) requires an external action in.
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61) If the enthalpy of vaporization of chloromethane, CH3Cl, is 21.5 kJ/mol at the normal boiling point, 249 K, calculate ΔS°vap. A) 86.3 J mol-1 K-1 B) 5.35 J mol-1 K-1 C) 11.6 J mol-1 K-1 D) 896 J mol-1 K-1 62) Consider the following reaction: C(g) + 2 H2(g) → CH4(g) S°  5.69130.58186.19 J/mol?deg What.
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1) According to the Arrhenius theory, a neutralization reaction involves the combination of an acid with a base to make only water. 2) According to the Arrhenius theory, a neutralization reaction involves the combination of hydrogen ions and hydroxide ions to form water. 3) Br∅nsted and Lowry suggested that bases.
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71) Write the solubility product constant expression for the following salt: Ca3(PO4)2. A) [Ca2+][PO43-] B) [Ca2+]2[PO43-]3 C) [Ca2+]3[PO43-]2 D) [Ca2+]2[PO43-] E) [Ca2+][PO43-]2 72) Write the solubility product constant expression for the following salt: CoS. A) [Co2+]2[S2-]2 B) [Co2+]2[S2-] C) [Co2+][S2-] D) [Co2+][S2-]2 E) [Co2+]1/2[S2-] 73) At a temperature for which the solubility.
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51) In the following reversible reaction the Br∅nsted acids are ________. HCO3-(aq) + OH-(aq) ? CO32-(aq) + H2O A) HCO3- and H2O B) HCO3- and CO32- C) OH- and CO32- D) OH- and H2O E) H2O and CO32- 52) Complete the following equation. List the conjugate acid base pairs. Put the base.
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