Suppose that something had gone "wrong" in the Big Bang and, instead of ordinary hydrogen, there was an abundance of deuterium in the Universe. There would be many subtle changes in equilibria, particularly the deuteron transfer equilibria of heavy acids and bases. The Kw for D20, at 25 °C, is 1.35 x 1015. Calculate the pD and pOD in neutral heavy water at 25 °C. Ans: 745

Suppose that something had gone "wrong" in the Big Bang and, instead of ordinary hydrogen, there was an abundance of deuterium in the Universe. There would be many subtle changes in equilibria, particularly the deuteron transfer equilibria of heavy acids and bases. The Kw for D20, at 25 °C, is 1.35 x 1015. Calculate the pD and pOD in neutral heavy water at 25 °C. Ans: 745

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter11: Rate Of Reaction

Section: Chapter Questions

Problem 99QAP: The gas-phase reaction between hydrogen and iodine H2(g)+I22HI(g)proceeds with a rate constant for...

See similar textbooks

Similar questions

The gas-phase reaction between hydrogen and iodine H2(g)+I22HI(g)proceeds with a rate constant for the forward reaction at 700C of 138 L/moI s and an activation energy of 165 kJ/moI. (a) Calculate the activation energy of the reverse reaction given that H f for HI is 26.48 kJ/moI and H f for I2(g) is 62.44 kJ/mol. (b) Calculate the rate constant for the reverse reaction at 700C. (Assume A in the equation k=AeE a /RT is the same for both forward and reverse reactions.) (c) Calculate the rate of the reverse reaction if the concentration of HI is 0.200 M. The reverse reaction is second-order in HI.
3 / 3 100% + | 5. The following series of reactions show the catalyzed conversion of oxygen to ozone: ½ 0, (g) + NO (g) → NO, (g) 2 NO, (g) → NO (g) + O (g) 2 O, (g) + O (g) → 0, (g) -> a) Write the overall reaction. b) Is NO, or NO the catalyst for this reaction? Explain your answer. the following reaction:
Calculate the activity of 103 in a saturated solution of La(103)3 in water. 1.0 x 10-11 Kap : а. 2.0 х 103 b. 1.7 x 10-4 С. 2.7 х 10-3 d. 1.2 x 10-3 е. 3.9 х 103 f. 4.8 x 10-4
Define half-life of radioactive elements. 18g Hydrogen is supplied 5 points with 170g air to produce water. Determine the excess amount of hydrogen. Calculate the average molecular weight of the outlet gas stream.
11:21 AM Tue Apr 25 < Note Apr 25, 2023 Apr 25, 2023 at 11:10 AM 5 Dlm, the -XPH 2 T Br ●●● ON XPho 87% + : < 1 / 2
7) An organic acid (A) under goes ionization in water according to the equation: R COUH R con th The acid dissociation constant of this compound at 25°C is: pka = -log K₂ = 3.0 (with Ka = a Rcoo- * a H+ :)). Consider the activity of the subtances in terms of molar aRCJOH concentration (M) 7.1 Determine the degree of ionization of acid A when dissolving 0.01 mol of this substance in 1000 mL of water. 7.2 Determine the van't Hoff factor i for the solution in part a
AG° (kJ per mole O₂) -300 -600 -1050 4 Cu + O₂-2 Cu₂0 .…....... 2 Zn + 0₂ → 2 ZnO 2C+0₂-2 CO 4/3 AI + O₂ → 2/3 Al₂O, 1000 Temperature (°C) 2000 What is the overall reaction when 2Zn(s) + O2(g) → 2ZnO(s) +701kJ is coupled with the reduction of Cu₂0(s) to Cu(s)? Will it be spontaneous at 1000 Celsius? Why and why not?
A drug is infused intravenously (IV) for treatment of a particular disease. The infusion rate of the drug is k0 = 200 mg/hr. The volume of the body fluid V = 16 liters. The drug is excreted (removed) through the kidneys at rate ke = 0.3/hr, proportional to the concentration of the drug in the bodyfluids. How much is the maximum concentration of the drug in the body in the steady state in mg/l?
mulation: Carbohydrates: The 1o1 Chem101 Question 10 of 20 Write a balanced chemical equation based on the following description: solid CH100 is burned with oxygen gas to produce gaseous carbon dioxide and water vapor D4- D3- 12- 2+ 3+ [4+ 1 3 4 7 8. 5 (s) (g) (aq) C Cr Ox H Са W Cb Reset •* H,O Delete acer
in T Engber Gogdanige suu att CEP gel sgranatha neatuerS SIRIST COURSES HECISIONCE SUIDER SLE obatet angulten Slo-FranCE The following data were obtained from a study of the decomposition of a sample of HI on the surface of gold at 320 °C: SEE brojem THE AL E BLOM LED t, seconds Concentration of HI, mmole/L Lardon 0.00 5.46 HOE 250 3.60 500 2.30 750 91-409-566 Grepargne Layon By Ale FREE CLOS DRACU An PASTEL GEENGE SIL ut Eiche D 4 CHFOOT Turcusto cometenger DE 1.37 BOUCDSOLGE AEROpo # UPPI Cordp L Plot the data using the first- and second-order equations. POISTOT CHEKEstratan PODGR SEGER 1. What is the correlation coefficient (r) for each plot? SEQTC bronhiat: Stel Jottmann Select | a. r for first-order? EC: b. r for second-order? Select Select 2. What is the order for this reaction? 3. What is the rate constant? Select] 4. What is the HI concentration (in mmol/L) at 450 s? PRESTORE AREREHA FOR SACRAM SHOSSE SEPE AVALFEFORE AVERE SAUSER EXCHONC PERENISS 467584 Appeler JALAH in Cama…
What is the difference between KD and KA? in relation to “Law of Mass Action"