13. Consider this reaction ReBr + LiF + ReF + LiBr. Which is the correct prediction and explanation about the equilibrium constant, K, for this reaction a) K> 1, because Br is a harder base than F b) K> 1, because F is a harder base than Br c) K< 1, because Br is a harder base than F d) K< 1, because F is a harder base than Br
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- Reaction: CrO42-(aq)+2H+(aq) <--> Cr2O72-(aq)+H2O(l) YELLOW ORANGE If sulfuric acid (H2SO4) is added to this solution, will a color change be observed? If so, how does the addition of sulfuric acid result in a color change? Explain your reasoning by showing the effect of the addition of H2SO4 on the equilibrium for the reaction.i have a reaction of 2NO2(g) + Br2(g) <----> 2NOBr (g) Keq = 1.3 x 10 ^-2, temp = 1000 K how do I figure out the (new) Keq for the reverse and increased concentration reaction of: 4NOBr(g) <----> 4NO2 (g) + 2Br2(g)Write the expression for Keq for this reversible reaction.If you begin with 5 mM Mg2+ and 0.1 mM HO-CH2-COO-, and with a value of Keq = 103 M-1, calculate the concentrations of Mg2+ , HO-CH2-COO-, and Mg2+(HO-CH2-COO-) at equilibrium.
- calculate ΔG rxn at 325 K for the hypothetical reaction below A2B8 (g) + 3O2 (g) ----> 2AO (g) ΔH°f (kJ/mol) -198 0 23 S° (J/mol•K) 281 205 180Consider the reaction:PCl3(g) + Cl2(g) <----> PCl5(g) Write the equilibrium constant for this reaction in terms of the equilibrium constants, Ka and Kb, for reactions a and b below: a.)P(s) + 3/2 Cl2(g) <----> PCl3(g) Ka b.)P(s) + 5/2 Cl2(g) <----> PCl5(g) Kb K =The equilibrium at 25 °C MaCl5 (aq) + 4 H2O (l) ↔ H3MaO4 (aq) + 5 HCl (aq) Kc = 5500 ΔH°(rxn) = 28.1 kJ/mol, Determine the ΔG°(rxn)
- You are on a new planet and discover a substance, Z2O that undergoes autoionization just like water on Earth. Z2O + Z2O ⇌ Z3O+ + OZ– Through a series of experiments, you determine the equilibrium constant (Kx) for this autoionization reaction at various temperatures. The value of Keq at 26.8ºC is 6.9 x 10-14. What is the pZ of the pure substance at this temperature? (pZ = -log(Z3O+) Report your answer to the hundreths placeReaction: CrO42-(aq)+2H+(aq) <--> Cr2O72-(aq)+H2O(l) YELLOW ORANGE If sodium hydroxide (NaOH) is added to the solution, will a color change be observed? If so, how does the addition of sodium hydroxide result in a color change? Explain your reasoning by showing the effect of the addition of NaOH on the equilibrium for the reaction.Determine the equilibrium concentration of WHITE (g). WALTER (g) ⇌ 2 WHITE (g) KC = 0.21 [WALTER]eq = 0.0033 M Group of answer choices: 0.026 M 1.2 × 10–1 M 8.3 × 10–2 M 6.9 × 10–3 M 1.44 M
- What is [Cu2+] at equilibrium, given CuS, Ksp = 1.27 x 10^-36? A. 1.27 x 10^-36 MB. 6.35 x 10^-37 MC. 1.13 x 10^-18 MD. 1.61 x 10^-72 ME. There is not enough information in this prompt to answer this question.Find the equilibrium concentrations for all species in the following genral dissociation reaction given that Keq=1.6 x 10^-7 HX<---> H+ + X- Initial concentration of acid HX=0.2 MFor which of the following reactions would K be largest? 2H+(aq) + Pb(s) --> H2(g) + Pb2+(aq) 2H+(aq) + Sn(s) --> H2(g) + Sn2+(aq) 2H+(aq) + Ni(s) --> H2(g) + Ni2+(aq) 2H+(aq) + Co(s) --> H2(g) + Co2+(aq)