A) Ni(s) is answer.
As Nickel is in its natural state so Hf is zero for Ni(s) in the given reaction.
DITU U11 U1 18. In the reaction below, AHf is zero for Ni (s) + 200...
in the reaction below, change of H =0 for problem istry er Keys iClicker Question • In the reaction below, AH, = 0 for | Ni (s) + 2 CO (g) + 2 PF (g) – Ni(CO) (PF) (0) • A) Ni (s) • B) CO (9) • C) PF3 (9) •D) Ni(CO)2(PF3)2 (1) • E) both CO (g) and PF3 (9)
26. The internal energy can be increased by a) transferring heat from the surroundings to the ystem (b) transferring heat from the system to the surroundings c) doing work on the system A) a only B)b only C) c only D) a and c E) b and e 27. For the species in the reaction below, AHf is zero for 2Co (s) + H2 (3)+ 8PF3 () 2HCo(PF3)4) A) Co (s) B) H2 (3) C) PF3 (8) 1D) HCo(PF3)40 E)...
please help, thanks! 7. What is the correct cell notation for the reaction below? Cd(aq)+Ni(s)-Cd(s)+ Ni(aq) a. Cd Cd| Ni | Ni d. Ni Cd I N | Ca b. Cd CdNi | Ni e. Cd |Cd Ni Ni 8. Calculate AS for the dissociation of dinitrogen tetraoxi de at 25°C NOdg) 2NO:(g) AG, J/mol)AH, J/mol) Substance NO) NOdg) +33.2 +51.3 +97.9 +9.2 d. +0.076 kJ K a.-2.10 kJ/K e +2.10kJ/K b. -0.550 kJ/K c.-0.208 kJ/K 9. Use the standard...
Q(18) NI(CO)49) - Ni(s) + 4 CO(g)Adding nickel (solid) to this reaction will cause the equilibrium to A) Shift toward the products B) Shift toward the reactants C) remain unchanged D) increase the temperature E) it depends on the amount added Q(19) CO2 + H2 -CO + H2O Adding a catalyst to this reaction will cause the COD at equilibrium to A) Shift toward the products B) Shift toward the reactants C) remain unchanged D) increase the temperature E) it...
What is the balanced equation for the galvanic cell reaction expressed using shorthand notation below? Ni(s) 1 Ni2+(aq) Il Cl2(g) Caq) 1 C(s) A Ni(s) + Cl2() -- Ni2+ (aq) + 2CH(aq) B. Ni2+(aq) + 2 Cl(aq) - Ni(s) + Cl2(g) C. N:2+(aq) + 2 C1-(aq) - NiC12(s) D. Ni(s) + 2 C1-(aq) - Ni2+(aq) + C12()
(37) Consider the reaction: Ni(CO)4 (g) Ni (s) + 4CO (g) What is the expression for K for this reaction? [1] Kc= [Ni][CO]4[Ni(CO)4] [2] Kp= [Ni][CO][Ni(CO)4] [3] Kp= (PCO)4(PNi(CO)4) [4] K?= [Ni][CO]4 [5] None of the above.
1. Calculate the value of E° for the reaction below; Pb2+ (aq) + Ni (s) → Ni2+(aq) + Pb (s) 2. Calculate the value of ΔG° for the reaction below using your value from Question one; Pb2+ (aq) + Ni (s) → Ni2+(aq) + Pb (s) 3. Balance the following redox reaction in acidic conditions; KMnO4 (aq) + NO (g) → MnO2 (s) + NO2(g)
Purification of Ni metal can be facilitated by its ability to react with carbon monoxide. Ni(s) + 4CO(g) --> Ni(CO)4(g) Substance: Ni(s) CO(g) Ni(CO)4(g) S°(J/K•mol): 30.1 197.9 410.6 DH° (kJ/mol): 0 -110.5 -602.9 What is DG° for this reaction? A) –437.9 kJ/K•mol B) +437.9 kJ/K•mol C) +38.4 kJ/K•mol D) –38.4 kJ/K•mol E) –438.2 kJ/K•mol
17) Determine the oxidizing agent in the following reaction. Ni(s) + 2 AgClO4(aq) → Ni(ClO4)2(aq) + 2 Ag(s) A) Ag B) Ni C) CI D) O E) This is not an oxidation-reduction reaction. 18) When an aqueous solution of manganese (II) nitrate is combined with an aqueous solution of ammonium sulfide, what should precipitate out? A) Mns B) Mn(SO3)2 C) Mn(SO4)2 D) Mn 2503 E) Mn 2504 19) If 4.89 g of ZnCl2 is dissolved in enough water to give a total...
52) Use the standard reaction enthalpies given below to determine AHryn for the tonowe reaction P4() + 10 C12(e) → 4PC15(s) Hºrxn = ? Given: PC15(s) → PC13(g) + Cl2(e) AHørxn = +157 kJ P4(B) + 6 Cl2(e) → 4 PC13(g) AH*rxn=-1207 kJ A) -1835 kJ B) -1364 kJ C) -1050. kJ D) -1786 kJ E) -2100. kJ 53) Use the standard reaction enthalpies given below to determine AHørxn for the following reaction 4 SO3(e) — 4 S(s) + 6...