fuyairLECHOICE Choose the one alternative that best completesthe statement or an
ID: 519059 • Letter: F
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fuyairLECHOICE Choose the one alternative that best completesthe statement or answers the question. 1) Which of the following is most soluble? B) Fes (Ksp 4. 10-19 Pts (Ksp 8. 10-73) 2012 aksp 13.10-180 2) The solubility product constant of Li3POs is 32. 10-9. What is the molar solubility of L3POM in water? A) 1.5. 10-3 M B033 10-3 M 57 10-5 M D) 75 10-3 M E)93 10-4 M Lead, water, sulfur, and arsenic have specific heats of o.128, 4.18.0206, o329 Jg 1 C 1, respectively Which of the following would need the smallest quantity of heat to change the temperature of 5gby 10 C? B) water D) arsenic 4) Enthalpy is defined as: A) the work not limited to pressure volume work B) the energy contained within a system C) the sum of the internal energy and the pressure-volume product of a system D) the sum of the kinetic and potential energies E) the heat of combustion 50 075 mol of N2 and 120 mol of H2 placed in a 30 liter container. When the reaction N20gl 3Ftzig) 2NH30g reaches equilibrium, IH21-0.100 M. Which of the following is true? B) INH31 0200 IN21 0.680 M 60 Aocording to Le Chatelier's Principle: A) the greatest yield of ammonia in the exothermic reaction N2+3H12 2NHy is attained at a high temperature B) an increase of temperature causes a decrease in the value of the equilibrium constant for an exothermiereaction C) the equilibrium constant is increased for the reaction A B Cif the concentration of A isincreased D) when an equilibrium system is stressed, the system reacts to offset the stress E) an increase in pressure always causes a change in the position of equilibrium for any reaction At equilibrium at a certain temperature, lH20 -0.12 M, and Ico(gl 120g01-12 M. If suddenly these concentrations are increased by 0.50 M, which of the following is true? A) more H20(g) will be formed BO more products are formed C Since Ke does not change, nothing happens 8) The solubility of CaF2 is000021 mole per liter. What is solubility product constant for CaP2? the A) 37 10-11 B) 1.9. 10-11 D) 73 10-12 E) 85 10-8 MNT RON.Explanation / Answer
Ans 1. C. MnS (ksp = 8 x 10-16)
Ksp is the solubilty product constant of a compound, the degree of which indicates the solubility of its ions in the water.
hence more the ksp, more soluble is the compound.
Ksp for MnS is given as ,
Ksp = [Mn2+] [S2-] = 8 x 10-16
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