Chemistry concepts and calculations

7i. If you were standing on a train station platform, and a colleague was standi

7i. If you were standing on a train station platform, and a colleague was standi speed, singing and playing their guitar, would their voice sound more like Taylor Swift or Kanye W…

7i. If you were standing on a train station platform, and a colleague was standi

7i. If you were standing on a train station platform, and a colleague was standi speed, singing and playing their guitar, would their voice sound more like Taylor Swift or Kanye W…

7of 17 Pairing energy and splitting energy The energy difference between d orbit

7of 17 Pairing energy and splitting energy The energy difference between d orbitals is called the splitting energy, A, and will vary depending on the ligand Ligands that cause lar…

7s in the structure shown, the functional . groups in the triangle, rectangle pe

7s in the structure shown, the functional . groups in the triangle, rectangle pentagon and circle (in this same order) ut CH OCH amine, ketone-ether, ether, amide amine, ester, et…

8 (5 points). Toto the canine astronaut is piloting a starship 178,000 light yea

8 (5 points). Toto the canine astronaut is piloting a starship 178,000 light years away from Earth. He stumbles upon what he believes is the mythical "Leg Bone Asteroid", and "bea…

8 -Chem. Eq Chemical Equilibrium Record All Data and observations Here brium I.

8 -Chem. Eq Chemical Equilibrium Record All Data and observations Here brium I. studying the Dissociation HC HolAS Wal color of original equilibrium mixture color change after add…

8 2. freezing of water 3 decomposition of water into hydrogen and oxygen gases 4

8 2. freezing of water 3 decomposition of water into hydrogen and oxygen gases 4 compression of oxygen gas A)2, 3,4 B) 1,3,4 C) 1,3 D) 1,2 E) 24 9 Osmium has a mass of 24.914lbs W…

8 2. freezing of water 3 decomposition of water into hydrogen and oxygen gases 4

8 2. freezing of water 3 decomposition of water into hydrogen and oxygen gases 4 compression of oxygen gas A)2, 3,4 B) 1,3,4 C) 1,3 D) 1,2 E) 24 9 Osmium has a mass of 24.914lbs W…

8 8.25 Which would you expect to have a higher molar entropy at T = 0, single cr

8 8.25 Which would you expect to have a higher molar entropy at T = 0, single crystals of BF3 or of C0F2? Why? 8.29 Which substance in each of the following pairs has the higher m…

8 9 10 Br PPh H-O reagent (a) Which atoms are nucleophilic centers (i.e., can re

8 9 10 Br PPh H-O reagent (a) Which atoms are nucleophilic centers (i.e., can react with electrophiles)? (b) Which atoms are electrophilic centers (i.e., can react with nucleophil…

8 A gas mixture of oxygen, nitrogen, and carbon dioxide has a total pressure of

8 A gas mixture of oxygen, nitrogen, and carbon dioxide has a total pressure of 2.30 atm. If the partial pressure of the oxygen is 650. mm Hg and the partial pressure of the carbo…

8 A high school track coach has just purchased a new stopwatch. The stopwatch un

8 A high school track coach has just purchased a new stopwatch. The stopwatch uncertainty of ±0.05 s. Runners on the track coach's team regularly clock 100-m sprints of 11.49 s to…

8 A high school track coach has just purchased a new stopwatch. The stopwatch un

8 A high school track coach has just purchased a new stopwatch. The stopwatch uncertainty of ±0.05 s. Runners on the track coach's team regularly clock 100-m sprints of 11.49 s to…

8 AM CST is allowed, with a one time 10% penalty to submitted score. Use the Ref

8 AM CST is allowed, with a one time 10% penalty to submitted score. Use the References to access important values if needed for this question. 2+ In the laboratory you are gi For…

8 CER Lab ManualJudith C. Foster An experiment similar to the one described in t

8 CER Lab ManualJudith C. Foster An experiment similar to the one described in this module was performed to determine the solubility and solubility product constant of leadl) chlo…

8 CH3NH2 3 HCIO4 8 NO. 8 CO: 20H40 13 HCI MW: 31.06 00.5 46.01 44.0 18.02 36.46

8 CH3NH2 3 HCIO4 8 NO. 8 CO: 20H40 13 HCI MW: 31.06 00.5 46.01 44.0 18.02 36.46 What mass of nitro dioxide can form reaction of 3.500 mole of a. 262 g b. 2.40 g Ig correct answer …

8 Calculate the H ion concentration in lemon juice having a pli ot 24. 0× 102M 9

8 Calculate the H ion concentration in lemon juice having a pli ot 24. 0× 102M 9. Identify the eonjugate acid ofHCO 0.38 M D)40-10M in the reaction A) HO B) HCO C) H CO 10. Which …

8 ELECTROLYSIS Question. 1. The electrolysis of molten calcium chloride produces

8 ELECTROLYSIS  Question. 1. The electrolysis of molten calcium chloride produces calcium and chlorine. Write the half-reaction that takes place at the anode and the half-reaction…

8 For the following titration curve 5. a. Fill in the blanks in the title with a

8 For the following titration curve 5. a. Fill in the blanks in the title with appropriate terms regarding the strength and acid or base character of the analyte and titrant. Titr…

8 Marks: 1 Consider the following half-reaction. 4H + (aq) + O 2 (g) + 4e - ? 2H

8 Marks: 1 Consider the following half-reaction. 4H+(aq) + O2(g) + 4e- ? 2H2O(l)      Eo = 1.23 V What is E, if the pressure of oxygen gas is 1.0 atmosphere and the pH is 5.31? US…

8 Which of the following solutions is not unsaturated? A. a sugar cube that comp

8 Which of the following solutions is not unsaturated? A. a sugar cube that completely dissolves when added to a cup of coffee B. a crystal added to a solution that does not chang…

8 and 10 Please! 8. (10) You have discovered a new compound that you think may b

8 and 10 Please! 8. (10) You have discovered a new compound that you think may be capable of undergoing "Cold Fusion." But you don't know the molecular weight of this compound, an…

8 l Normal No Spa.. Heading 1 Title Subtitle Subt LIPID QUESTIONS 1. A fatty aci

8 l Normal No Spa.. Heading 1 Title Subtitle Subt LIPID QUESTIONS 1. A fatty acid designated 18:4 has 18and 4 2. Which fatty acid would have a lower melting point? 18:0 or 18:4? 3…

8 of 25 An unknown compound contains only carbon, hydrogen, and oxygen (C,H, O,)

8 of 25 An unknown compound contains only carbon, hydrogen, and oxygen (C,H, O,). Combustion of 2.50 g of this compound produced 3.67 g of carbon dioxide and 1.50 g of water. Part…

8 of 25 An unknown compound contains only carbon, hydrogen, and oxygen (C,H, O,)

8 of 25 An unknown compound contains only carbon, hydrogen, and oxygen (C,H, O,). Combustion of 2.50 g of this compound produced 3.67 g of carbon dioxide and 1.50 g of water. Part…

8 of 8 A 2.800x10-2 M solution of NaCI in water is at 20.0°C. The sample was cre

8 of 8 A 2.800x10-2 M solution of NaCI in water is at 20.0°C. The sample was created by dissolving a sample of NaCl in water and then bringing the volume up to 1.000 L. It was det…

8 of 9 Constants | Periodic Table The reaction CO2( g )+C( s )2CO( g ) has K = 4

8 of 9 Constants | Periodic Table The reaction CO2(g)+C(s)2CO(g) has K = 48.3 at 1200 K. Part A Part complete Calculate the total pressure at equilibrium when 4.81 g of CO2 is int…

8 of 9 Constants | Periodic Table The reaction CO2( g )+C( s )2CO( g ) has K = 4

8 of 9 Constants | Periodic Table The reaction CO2(g)+C(s)2CO(g) has K = 48.3 at 1200 K. Part A Part complete Calculate the total pressure at equilibrium when 4.81 g of CO2 is int…

8&9? Complete and balance the following redox equations Is the thiosulfate ion.

8&9? Complete and balance the following redox equations Is the thiosulfate ion. CIO^- an oxidizing or reducing agent? How many electrons are transferred in reaction (8a)? In t…

8) (2) Which one of the following compounds is expected to react slower by way o

8) (2) Which one of the following compounds is expected to react slower by way of an S2 mechanistic pathway? a. Bromomethane b. Bromoethane c. 2-bromopropane d. 2-bromo-2-methylpr…

8) 4.130 g mixture containing CacO2(s) is heated until all Caco (s) is decompose

8) 4.130 g mixture containing CacO2(s) is heated until all Caco (s) is decomposed completely. CaCO3(s) ca CO3(s) CaO (s) + CO2 (g) 3 100.0, Ca0-56.1, co2 4.0 g/mole) -> molar m…

8) A 5000 mg tablet of Vitamin C(ascorbic acid, CaHO pK, -4.17) was titrated wit

8) A 5000 mg tablet of Vitamin C(ascorbic acid, CaHO pK, -4.17) was titrated with 0.150 M NaöH required 15 that no other chemical in the tablet reacts with NaOH) .55 ml to reach a…

8) A chemical equilibrium that is a classic example of a statistical derivation

8) A chemical equilibrium that is a classic example of a statistical derivation of thermodynamic reaction properties is the gas phase dissociation of iodine: I (g) 21 a) Calculate…

8) AS is negative for the reaction A)2502 (g) +02 (g) 250g) B) NH4Cl (s) NH3 (g)

8) AS is negative for the reaction A)2502 (g) +02 (g) 250g) B) NH4Cl (s) NH3 (g) + HCl (g) C) PbCl2 (s) P,2+ (aq) + 2a-(aq) D) 2C (s) + O2 (g) 2CO2 (g E) H2O (l) H2O (g) 9) Which …

8) According to the second law of thermodynamics, a spontaneous reaction must re

8) According to the second law of thermodynamics, a spontaneous reaction must result in no change in free energy for the reaction. b. the enthalpy of the universe increasing. s th…

8) An electrochemical cell has been assembled with an external wire connecting t

8) An electrochemical cell has been assembled with an external wire connecting the and a salt bridge containing KCl between the two cells. One electrolyte solution in is ZnSO4 (aq…

8) Answer questions 16-18 using the illustrations of the amino acid below: 16) W

8) Answer questions 16-18 using the illustrations of the amino acid below: 16) Which drawing, A, B, C, or D, illustrates the amino acid at a low pH? PLACE ANSWER HERE H,N-C-COO HN…

8) At a given temperature, the vapor pressures of hexane and octane are 183 mm H

8) At a given temperature, the vapor pressures of hexane and octane are 183 mm Hg and 59.2 mm Hg, respectively. Calculate the total vapor pressure over a solution of hexane and oc…

8) Based on the previous question, what is the main reason for this reactivity?

8) Based on the previous question, what is the main reason for this reactivity? A. A higher number of protons make elements unstable, and more likely to react A lower number of ne…

8) Bauxite is an ore that contains the element aluminum. If you obtained 108 gra

8) Bauxite is an ore that contains the element aluminum. If you obtained 108 grams of aluminum from 8 an ore sample that initially weighed 204 grams, what is the mass percent of a…

8) Consider the following decay series: a b c d 218/84 Po ------->214/82 Pb-----

8) Consider the following decay series: a b c d 218/84 Po ------->214/82 Pb----------> 214/83 Bi--------------> 214/84 Po----------> 210/82 Pb Which type of nuclear pr…

8) Define kinetic ener8y A) energy associated with the temperature of an object

8) Define kinetic ener8y A) energy associated with the temperature of an object B) energy associated with the motion of an object C) energy associated with the force of an object …

8) Define kinetic ener8y A) energy associated with the temperature of an object

8) Define kinetic ener8y A) energy associated with the temperature of an object B) energy associated with the motion of an object C) energy associated with the force of an object …

8) Develop a simulated digital predistortion model employing the calibration dat

8) Develop a simulated digital predistortion model employing the calibration dataset. Using Eq. 3 and 10, design a digital predistortion model capable of accurately compensating f…

8) Draw McCabe-Thiele diagrams with the operating and the equilibrium lines for

8) Draw McCabe-Thiele diagrams with the operating and the equilibrium lines for the following three equilibrium stage processes. You can assume both lines are straight. Show the d…

8) Find the pH for 500.00mL of the buffer from exercise 5 after the addition of

8) Find the pH for 500.00mL of the buffer from exercise 5 after the addition of 100.00mL of 0.3M barium hydroxide. (Ex.5, Find the pH of a buffer composed of 0.80M ammonia and 0.9…

8) Given the following equation, C3H8(g) + 5 O2(g) 3 CO2(g) + 4 H2O(g) G°rxn = -

8) Given the following equation, C3H8(g) + 5 O2(g) 3 CO2(g) + 4 H2O(g) G°rxn = -2074 kJ Calculate G°rxn for the following reaction. 21 CO2(g) + 28 H2O(g) 7 C3H8(g) + 35 O2 g) A) +…

8) Given the following equation, C3H8(g) + 5 O2(g) 3 CO2(g) + 4 H2O(g) G°rxn = -

8) Given the following equation, C3H8(g) + 5 O2(g) 3 CO2(g) + 4 H2O(g) G°rxn = -2074 kJ Calculate G°rxn for the following reaction. 21 CO2(g) + 28 H2O(g) 7 C3H8(g) + 35 O2 g) A) +…

8) In the following equation which m Co2 cle has been reduced: a. O2 to H2O b. C

8) In the following equation which m Co2 cle has been reduced: a. O2 to H2O b. C6H1206 to CO2 9) ATP is best described as a. an enzyme b. a double helix c. an electron carrier d. …

8) In the following equation which m Co2 cle has been reduced: a. O2 to H2O b. C

8) In the following equation which m Co2 cle has been reduced: a. O2 to H2O b. C6H1206 to CO2 9) ATP is best described as a. an enzyme b. a double helix c. an electron carrier d. …