Chemistry concepts and calculations

32. The formal charge of an atom in a Lewis structure is defined as the differen

32. The formal charge of an atom in a Lewis structure is defined as the difference between the number of bonding electrons and nonbonding electrons assigned to an atom. the differ…

32. The reaction of HCI with NaOH is represented by the equation HCI(aq) + NaOH(

32. The reaction of HCI with NaOH is represented by the equation HCI(aq) + NaOH(aq) NaCl(aq) + H200 What volume of 0.668 M HCI is required to titrate 2 a, 9.79 mL b.1.49 mL c. 21.…

32. The reaction system POCls(g) POCI(g)+ Cl2(g) is at equilibrium. Which of the

32. The reaction system POCls(g) POCI(g)+ Cl2(g) is at equilibrium. Which of the following statements describes the behavior of the system if POCI is added to the container? A. Th…

32. When the following reaction is balanced what is the coefficient for - OH? __

32. When the following reaction is balanced what is the coefficient for -OH? ____N2H4 + ____ClO3- + ____-OH à ____NO3- + ____Cl- + ____H2O a.2                b. 4                 …

32. Which of the following forms when 1,3-cyclohexadiene is treated with one equ

32. Which of the following forms when 1,3-cyclohexadiene is treated with one equivalent of Br? 1,2-dibromocyclohexene 3,4-dibromocyclohexene 1,3-dibromocyclohexene D 3,6-dibromocy…

32. Which of the following is not a suitable so Which is the best method to acco

32. Which of the following is not a suitable so Which is the best method to accomplish this transformation? 27. (A) acetone (B) tetrahydrofuran (C) diethyl ether (D) 12-dimethoxye…

32. Which of the following statements about enzymes is FALSE? A) They are unchan

32. Which of the following statements about enzymes is FALSE? A) They are unchanged in a biochemical reaction. B) They are proteins (but sometimes RNA) C) They increase the rate o…

32. and powdered aluminum can react with great of to form molten iron and Alon W

32. and powdered aluminum can react with great of to form molten iron and Alon When this reaction equation is balanced, what are the heat Fezo, Al, Fe, AlzO? stoichiometric coeffi…

32.67 mL of a 0.1249 M sodium hydroxide solution are required to completely reac

32.67 mL   of a 0.1249 M   sodium hydroxide solution are required to completely react with a vitamin C tablet with a mass of  908 mg  . The potency on the bottle of vitamin C tabl…

320 Part Three Properties and Reactions of Organic Compounds groups, respectivel

320 Part Three Properties and Reactions of Organic Compounds groups, respectively. Compare your spectrum to thet shown in Figure 1. Your instructor may also want you to determine …

32112018 For each of the following sets of atoms and/or ions, choose the species

32112018 For each of the following sets of atoms and/or ions, choose the species that has a different confguration from the other species in the set. 19.-/1.2 points electron S2- …

328 3. Compound 3 gave the iH NMR spectrum shown in Figure 13.1-5. The molecular

328 3. Compound 3 gave the iH NMR spectrum shown in Figure 13.1-5. The molecular formula compound 3 is C.Hizo 61.20 (3H) 83.10 1H) (hydroxy) 63.55 (1H) 83.75 (2H) Figure 13.1-5 H …

328 Report Sheet Hydrolysis of salts and pH of Buffer solutions QUESTIONS i. Usi

328 Report Sheet Hydrolysis of salts and pH of Buffer solutions QUESTIONS i. Using the Ka's for Hc2H,o, and Hco, (from Appendix F), calculate the KM's for the ChHyo2 and CO ions. …

33 Question (5 points) a See page 492 A solution contains 4.70 moles of water, 1

33 Question (5 points) a See page 492 A solution contains 4.70 moles of water, 1.00 moles of sucrose (C12H22011), and 1.10 moles of glucose.Sucrose and glucose are nonvolatile 2nd…

33 Question (5 points) a See page 492 A solution contains 4.70 moles of water, 1

33 Question (5 points) a See page 492 A solution contains 4.70 moles of water, 1.00 moles of sucrose (C12H22011), and 1.10 moles of glucose.Sucrose and glucose are nonvolatile 2nd…

33) (a) A piston at 5.9 atm contains a gas that occupies a volume of 3.5 L. What

33) (a) A piston at 5.9 atm contains a gas that occupies a volume of 3.5 L. What pressure would have to be placed on the piston to force the volume to adjust to 0.32 L? __________…

33) How does one make a toilet? a) forging ceramic blanks or stock b) slip casti

33) How does one make a toilet? a) forging ceramic blanks or stock b) slip casting and firing. c) extrusion and cold working d) melting, calendaring, and floating on molten tin. .…

33) How does one make a toilet? forging ceramic blanks or stock slip casting and

33) How does one make a toilet? forging ceramic blanks or stock slip casting and firing. extrusion and cold working melting, calendaring, and floating on molten tin. . 34) Tool st…

33) Which of the following processes involves the adding of energy (heat)? A) co

33) Which of the following processes involves the adding of energy (heat)? A) condensation B) melting C) freezing 34) The temperature at which a liquid boils is the boiling point …

33. (b) False . The large jump in ionisation energy is observed between 2 and 3r

33. (b) False . The large jump in ionisation energy is observed between 2 and 3rd ionisation energies. Because after losing two electrons it gets noble gas electronic configuratio…

33. A electrolytic cell similar to that shown in the figure above is constructed

33. A electrolytic cell similar to that shown in the figure above is constructed. The electronic device shown at the top of the figure is a power supply. One electrode compartment…

33. A one liser solution contains 0.200 M CH COOH 40. An aqueous buffer contains

33. A one liser solution contains 0.200 M CH COOH 40. An aqueous buffer contains acetic acid (CH,COOH) and (K 1.8x10) and 0.200 M CH,cOONa. The initial pH is 4.74, Calculate the p…

33. Arra nge the act ng (A) (B) (c) (D) (4) c, A. D. B (2) D. c, B, A (5) D. A.

33. Arra nge the act ng (A) (B) (c) (D) (4) c, A. D. B (2) D. c, B, A (5) D. A. C. (3) D. C. A. E 34. which compound gives a brown neutral when shaken cold, dilute, test)? (4) (2)…

33. Page 9 of 12 For the process Hog) a. it is endothermic. b. it occurs with no

33. Page 9 of 12 For the process Hog) a. it is endothermic. b. it occurs with no change in enthalpy C it occurs with decreasing entropy Use bond dissoc reaction: Hon, which one of…

33. Suppose that the WSClock page replacement algorithm uses a r of two ticks, a

33. Suppose that the WSClock page replacement algorithm uses a r of two ticks, and the system state is the following: Page Time stamp V R M 0 8 1 0 1 1 9 1 1 0 2 9 1 1 1 3 7 1 0 0…

33. The following data were obtained for the hypothetical reaction 2A+BD product

33. The following data were obtained for the hypothetical reaction 2A+BD products. IAh M IBla(M 0.1 0.2 0.1 Initial Rate (Mis) 0.2 0.2 0.6 5 20 45 What is the overall order of thi…

33. Which property of water is unchanged when a small quantity of sodium chlorid

33. Which property of water is unchanged when a small quantity of sodium chloride is added to it? (A) color (C) melting point (B) boiling point (D) osmotic pressure Normal saline …

33. You pass a basketball past a speed gun while your friend who is holding the

33. You pass a basketball past a speed gun while your friend who is holding the speed gun measures the velocity of the ball. Your friend who is holding the speed gun does not tell…

3333 Fill in the blanks (7) A(n)_________ is a pure substance containing two or

3333 Fill in the blanks (7) A(n)_________ is a pure substance containing two or more elements that are ________ combined. A(n) __________ iS represented by a chemical ______ . The…

336 4 Jump to. erleg-CHEM 1032-Spring18-BALCOM > Activities and Due Dates > HW 1

336 4 Jump to. erleg-CHEM 1032-Spring18-BALCOM > Activities and Due Dates > HW 11 o 2/19/2018 11:00 PM O 763/1002/14/2018 12:49 PM 20 of 25 Sapling Learning A 50/50 blend of…

336 4 Jump to. erleg-CHEM 1032-Spring18-BALCOM > Activities and Due Dates > HW 1

336 4 Jump to. erleg-CHEM 1032-Spring18-BALCOM > Activities and Due Dates > HW 11 o 2/19/2018 11:00 PM O 763/1002/14/2018 12:49 PM 20 of 25 Sapling Learning A 50/50 blend of…

34 EXPERIMENT 34 Pre-Lab Questions 1. Below is a general outline of a soap molec

34 EXPERIMENT 34 Pre-Lab Questions 1. Below is a general outline of a soap molecule. Indicate on the outline the area that is expected to be hydrophobic and the area that is expec…

34 Marks: 1 What will result is a process being spontaneous? (More than one answ

34 Marks: 1 What will result is a process being spontaneous? (More than one answer can be correct - each correct answer will result in full credit) Choose one answer. a. Both the …

34) An ultrasonic experiments delivered following data for the speed of sound in

34) An ultrasonic experiments delivered following data for the speed of sound in copper. cs,1 = 4660 m s-1 (longitudinal) cs,2 = 2260 m s-1 (transversal) Calculate the Debye-tempe…

34) An ultrasonic experiments delivered following data for the speed of sound in

34) An ultrasonic experiments delivered following data for the speed of sound in copper. cs,1 = 4660 m s-1 (longitudinal) cs,2 = 2260 m s-1 (transversal) Calculate the Debye-tempe…

34- A solution is A. a mixture of very fine particles B. A heterogeneous mixture

34- A solution is A. a mixture of very fine particles B. A heterogeneous mixture C. A homogeneous mixture D. A mixture of two immiscible liquids 35- The right combination to form …

34. A bucket of water with total mass 23 kg is attached to a rope, which in turn

34. A bucket of water with total mass 23 kg is attached to a rope, which in turn is wound around a 0.050-m radius cylinder at the top of a well. A crank with a turning radius of 0…

34. A solid has a very high melting point, is hard, and as a liquid it is a cond

34. A solid has a very high melting point, is hard, and as a liquid it is a conductor. The solid is a, a molecular solid. b. a metallic solid. c. a covalent network solid. d. an i…

34. An electron in initially occupies the second energy level of a hydrogen atom

34. An electron in initially occupies the second energy level of a hydrogen atom. A photon with a wavelength of 371.305 nm is absorbed and the electron is promoted to a higher ene…

34. Consider the following endothermic equilibrium: heat + N2F4 (g) = 2NF2 (g) W

34. Consider the following endothermic equilibrium: heat + N2F4 (g) = 2NF2 (g) Which one of the following alterations to equilibrium will shift the reaction to the reactant? (Poin…

34. Consider the following endothermic equilibrium: heat + N2F4 (g) = 2NF2 (g) W

34. Consider the following endothermic equilibrium: heat + N2F4 (g) = 2NF2 (g) Which one of the following alterations to equilibrium will shift the reaction to the reactant? (Poin…

34. How many s-sp3 bonds are there in the following substance? A) 3 B)8 E) 16 C)

34. How many s-sp3 bonds are there in the following substance? A) 3 B)8 E) 16 C) 12 D) 13 35. Select the rate law for the following reaction, e.g. (RBr) A) Rate k [RBr] B) Rate [R…

34. In order for nitrogen to be used by most plants and all animals, it must be

34. In order for nitrogen to be used by most plants and all animals, it must be (A) purified. (B) separated. (C) liquefied. (D) Fixed. 35. The reaction (industrial process) of nit…

34. The minimum amount of energy necessary for a reaction to occur is called the

34. The minimum amount of energy necessary for a reaction to occur is called the a. energy of reaction b. activation energy c. kinetic energy 35. A factor that contributes to incr…

34. The nitro (NOi) group is a very strong group and it is a powerful director a

34. The nitro (NOi) group is a very strong group and it is a powerful director a deactivating, ortho-para b, activating, meta c, deactivating, meta d. activating, ortho-para 35. I…

34. Without doing any calculations, determine the sign of ? S sys and ? S surr f

34. Without doing any calculations, determine the sign of ?Ssys and ?Ssurr for each chemical reaction. In addition, predict under what temperatures (all temperatures, low temperat…

34. Without doing any calculations, determine the sign of ? S sys and ? S surr f

34. Without doing any calculations, determine the sign of ?Ssys and ?Ssurr for each chemical reaction. In addition, predict under what temperatures (all temperatures, low temperat…

34.) 8 points Monohydrogen e is an amphoteric substance. Illustrate these proper

34.) 8 points Monohydrogen e is an amphoteric substance. Illustrate these propertied by writing the appropriate Ka Ks equations and corresponding equilibrium 35.) 6 points Complet…

342&offset-next; prevous l 11of11/ return to assign Part A The reaction between

342&offset-next; prevous l 11of11/ return to assign Part A The reaction between carbon tetrachlonide, CCl, and water, H 0, to form carbon dioxide, CO, and hydrogen chloride, H…

346.37 g/mol O 452.73 g/mol Question 15 2 points The molar mass of aluminum is 2

346.37 g/mol O 452.73 g/mol Question 15 2 points The molar mass of aluminum is 26.982 g/mol. Convert 0.0275 mol of aluminum to grams. Report your answer to three significant figu …