the answer to 3 is a and the answer to 4 is
d
look for detailed explanation to both answers thank you
Homework Answers
I need help in these questions. Please answer with plagiriasm Introductory Questions 1. What is a...
I need help in these questions. Please answer with
plagiriasm
Introductory Questions 1. What is a footprint? Why do we need to think about the carbon footprints” we leave behind? 2. What is a fossil fuel? Problem How much CO2 do you produce every year from normal, everyday activities? Complete Versus Incomplete Combustion Combustion, like all chemical reactions, does not always proceed with 100% efficiency. It is prone to limiting reactants the same as other processes. So, there are two...
Second Week: A closer look at molecular geometries and polarity. This part of the laboratory will...
Second Week: A closer look at molecular geometries and polarity. This part of the laboratory will make use of the PhET simulation for molecule polarity. On the phet.colorado.edu website, select "Play with Simulations." Now, choose "Chemistry" in the left options of simulations, and then select the "Molecule Polarity" simulation. Choose the "Three Atoms" simulation. When the simulation loads, in the "view" menu, choose to display the bond dipoles, molecular dipoles, and partial charges. Questions Water, H2O 1. Draw the Lewis...
i would really appreciate a quick answer please, thank you 4. Answer the following question (13...
i
would really appreciate a quick answer please, thank you
4. Answer the following question (13 marks) a. Caffeine (C&H 0N4O2) is natural stimulant most commonly found in tea, coffee and cacao plants. Calculate the percentage composition of the elements present. (5 marks) b. Question 4 continued. Calculate the mass of nitrogen in 20.6g of caffeine. (2 marks) c. The combustion of caffeine produces carbon dioxide; water and nitrogen gas. Determine the mass of carbon dioxide produced from the combustion...
Use the table below to answer the question that follow. Thermodynamic Quantities for Selected Substances at...
Use the table below to answer the question that follow. Thermodynamic Quantities for Selected Substances at 298.15K (25°C) Substance AHºf (kJ/mol) AG°f (kJ/mol) S (J/K mol) Carbon C (s, diamond) 1.88 2.84 2.43 C(s, graphite) 0 5.69 C2H2 (9) 226.7 209.2 200.8 C2H4 (9) 52.30 68.11 219.4 C2H6 (9) -84.68 -32.89 229.5 CO (9) -110.5 -137.2 197.9 CO2 (9) -393.5 -394.4 213.6 Hydrogen H2(g) 0 0 130.58 Oxygen 02 (9) 0 0 205.0 H₂O (1) -285.83 -237.13 69.91 The combustion...
Use the table below to answer question 1. Thermodynamic Quantities for Selected Substances at 298.15 K...
Use the table below to answer question 1. Thermodynamic Quantities for Selected Substances at 298.15 K (25 °C) Substance AHºf (kJ/mol) AG°f (kJ/mol) S (J/K-mol) 2.84 2.43 Sige Carbon C(s, diamond) 1.88 C(s, graphite) 0 C2H2 (g) 226.7 C2H4 (g) 52.30 C2H6 (g) -84.68 CO(g) -110.5 CO2 (g) -393.5 209.2 68.11 -32.89 -137.2 -394.4 5.69 200.8 219.4 229.5 197.9 213.6 Hydrogen H2(g) 0 0 130.58 Oxygen O2 (g) H20 (1) 205.0 69.91 -285.83 -237.13 1) The combustion of acetylene in...
Please answer throughly A) B) C) Name 2. Construct the models for the following substituted cycloalkanes...
Please answer throughly A) B) C)
Name 2. Construct the models for the following substituted cycloalkanes and minimize the structure in the builder mode. Calculate the heats of formation by doing a single point energy (AMI) calculation. In the set-up mode give the inputs as single point energy and AM1, and then submit the calculation). Answer the following questions based on the data you obtain. molecular formula: Cy Hi Gq H4 GH14 67.81 Kyne) 45.96 9/me! 23.66X7/md A) What is...
3. What is the major product of the following reaction? CH, CH2 HO, BH, THE 4....
3. What is the major product of the following reaction? CH, CH2 HO, BH, THE 4. Refer to the reaction in question 3. The regiochemistry of the hydroboration/oxidation of alkenes is: a Markovnikov. b. non-Markovnikov c. subject to solvent effects. d. unrelated to alkene structure. 5. Which of the following carbocations is the least stableone? D. CHE C d. CHE CH H₂C-¢. H-C H₂C-¢. сн. 6. Which of the following statement is NOT correct? a. Alkenes react with H, in...
Bomb calorimetry is a technique used to determine the enthalpy of combustion, usually in O2, of...
Bomb calorimetry is a technique used to determine the enthalpy of combustion, usually in O2, of a chemical species. A known amount of compound is placed inside a fixed volume container that is, in turn, filled with oxygen at a high enough pressure to ensure complete combustion. The fixed-volume container (the 'bomb') is then inserted into a bucket containing a precisely known volume of water. The oxygen and compound are ignited, and the temperature change in the water is recorded....
1. Which compound below has the largest dipole moment? A. CF2Cl2 D. CF4 B. CH2Cl2 E....
1. Which compound below has the largest dipole moment? A. CF2Cl2 D. CF4 B. CH2Cl2 E. CH Br2 C. CHF2 2. Which molecule below is polar? A. CF4 D. CS2 B. SiH4 E. CO2 C. CH2Cl2 3. What is the bond order of O2? A. 0 D. 3 B. 1 E. 1.5 C. 2 4. Which statement about a balanced chemical reaction equation is always correct? A. The total number of moles of the products equals the total number of...
may i have the answer for both please 4. To which one of these reactions occurring...
may i have the answer for both please
4. To which one of these reactions occurring at 25°C does the symbol AHA (H,SO) refer? A. 2H(g)+ S(g)+ 40(g)H,SO () B. H,(g) +Slg)+20,(g) --> H,SO,() C. H,SO.() H,(g) + $(s) + 20,(g) D. H,SO,)2H(g)+S(s) + 40(g) E. H,(e)+S(s)+ 20,(g)H,SO() 3. The Enthalpy of Combustion, AHomb of propane, C,Ha, = -2,220 kJ/mol. The products of the reaction are carbon dioxide and water. What is the value of AH when 88 g propane...
I need help in these questions. Please answer with
plagiriasm
Introductory Questions 1. What is a footprint? Why do we need to think about the carbon footprints” we leave behind? 2. What is a fossil fuel? Problem How much CO2 do you produce every year from normal, everyday activities? Complete Versus Incomplete Combustion Combustion, like all chemical reactions, does not always proceed with 100% efficiency. It is prone to limiting reactants the same as other processes. So, there are two...
Second Week: A closer look at molecular geometries and polarity. This part of the laboratory will make use of the PhET simulation for molecule polarity. On the phet.colorado.edu website, select "Play with Simulations." Now, choose "Chemistry" in the left options of simulations, and then select the "Molecule Polarity" simulation. Choose the "Three Atoms" simulation. When the simulation loads, in the "view" menu, choose to display the bond dipoles, molecular dipoles, and partial charges. Questions Water, H2O 1. Draw the Lewis...
i
would really appreciate a quick answer please, thank you
4. Answer the following question (13 marks) a. Caffeine (C&H 0N4O2) is natural stimulant most commonly found in tea, coffee and cacao plants. Calculate the percentage composition of the elements present. (5 marks) b. Question 4 continued. Calculate the mass of nitrogen in 20.6g of caffeine. (2 marks) c. The combustion of caffeine produces carbon dioxide; water and nitrogen gas. Determine the mass of carbon dioxide produced from the combustion...
Use the table below to answer the question that follow. Thermodynamic Quantities for Selected Substances at 298.15K (25°C) Substance AHºf (kJ/mol) AG°f (kJ/mol) S (J/K mol) Carbon C (s, diamond) 1.88 2.84 2.43 C(s, graphite) 0 5.69 C2H2 (9) 226.7 209.2 200.8 C2H4 (9) 52.30 68.11 219.4 C2H6 (9) -84.68 -32.89 229.5 CO (9) -110.5 -137.2 197.9 CO2 (9) -393.5 -394.4 213.6 Hydrogen H2(g) 0 0 130.58 Oxygen 02 (9) 0 0 205.0 H₂O (1) -285.83 -237.13 69.91 The combustion...
Use the table below to answer question 1. Thermodynamic Quantities for Selected Substances at 298.15 K (25 °C) Substance AHºf (kJ/mol) AG°f (kJ/mol) S (J/K-mol) 2.84 2.43 Sige Carbon C(s, diamond) 1.88 C(s, graphite) 0 C2H2 (g) 226.7 C2H4 (g) 52.30 C2H6 (g) -84.68 CO(g) -110.5 CO2 (g) -393.5 209.2 68.11 -32.89 -137.2 -394.4 5.69 200.8 219.4 229.5 197.9 213.6 Hydrogen H2(g) 0 0 130.58 Oxygen O2 (g) H20 (1) 205.0 69.91 -285.83 -237.13 1) The combustion of acetylene in...
Please answer throughly A) B) C)
Name 2. Construct the models for the following substituted cycloalkanes and minimize the structure in the builder mode. Calculate the heats of formation by doing a single point energy (AMI) calculation. In the set-up mode give the inputs as single point energy and AM1, and then submit the calculation). Answer the following questions based on the data you obtain. molecular formula: Cy Hi Gq H4 GH14 67.81 Kyne) 45.96 9/me! 23.66X7/md A) What is...
3. What is the major product of the following reaction? CH, CH2 HO, BH, THE 4. Refer to the reaction in question 3. The regiochemistry of the hydroboration/oxidation of alkenes is: a Markovnikov. b. non-Markovnikov c. subject to solvent effects. d. unrelated to alkene structure. 5. Which of the following carbocations is the least stableone? D. CHE C d. CHE CH H₂C-¢. H-C H₂C-¢. сн. 6. Which of the following statement is NOT correct? a. Alkenes react with H, in...
Bomb calorimetry is a technique used to determine the enthalpy of combustion, usually in O2, of a chemical species. A known amount of compound is placed inside a fixed volume container that is, in turn, filled with oxygen at a high enough pressure to ensure complete combustion. The fixed-volume container (the 'bomb') is then inserted into a bucket containing a precisely known volume of water. The oxygen and compound are ignited, and the temperature change in the water is recorded....
1. Which compound below has the largest dipole moment? A. CF2Cl2 D. CF4 B. CH2Cl2 E. CH Br2 C. CHF2 2. Which molecule below is polar? A. CF4 D. CS2 B. SiH4 E. CO2 C. CH2Cl2 3. What is the bond order of O2? A. 0 D. 3 B. 1 E. 1.5 C. 2 4. Which statement about a balanced chemical reaction equation is always correct? A. The total number of moles of the products equals the total number of...
may i have the answer for both please
4. To which one of these reactions occurring at 25°C does the symbol AHA (H,SO) refer? A. 2H(g)+ S(g)+ 40(g)H,SO () B. H,(g) +Slg)+20,(g) --> H,SO,() C. H,SO.() H,(g) + $(s) + 20,(g) D. H,SO,)2H(g)+S(s) + 40(g) E. H,(e)+S(s)+ 20,(g)H,SO() 3. The Enthalpy of Combustion, AHomb of propane, C,Ha, = -2,220 kJ/mol. The products of the reaction are carbon dioxide and water. What is the value of AH when 88 g propane...
Most questions answered within 3 hours.
-
What is meant by a “term premium”?
What can explain such a premium? Is it a...
asked 47 minutes ago -
23. Which molecule has only covalent bonds? A. CO2 B. Al2O3 C.
Mg3N2
24. The octet...
asked 1 hour ago -
the
total pressure for a mixture of N2O4 and NO2 is 2.20 atm. If Kp=
7.10...
asked 1 hour ago -
Delaware Corp. prepared a master budget that included $22,385
for direct materials, $28,600 for direct labor,...
asked 1 hour ago -
For pesticide HCB (hexachlorobenzene), its logarithmic partition
coefficient log Kow is 5.6. What would be the...
asked 1 hour ago -
A chemist requires 0.422 mil Na2CO3 for a reaction. How many
grams does this correspond to?
asked 1 hour ago -
If the vapor pressure of carvone is approximately 9.4 torr at 99
°C, approximately how much...
asked 1 hour ago -
A juice bottling company is carrying out a test at 10%
significance that the mean population...
asked 1 hour ago -
What is the reflectivity (in percent) needed to keep water at a
temperature near its freezing...
asked 1 hour ago -
Suppose that the average surface temperature of Earth is 300K.
Assume this is uniform over its...
asked 1 hour ago -
Draw the condensed structural formula for alkenes and alkynes or
the line-angle structural formula for cycloalkenes...
asked 1 hour ago -
M. Laing has suggested a new arrangement of the periodic table
(J.Chem.Ed.1989, 66,
746). Answer the following...
asked 2 hours ago