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8. Can two of these molecules hydrogen bond with each other? НН НН YES NO НН...
IN ILLIULIOL JU_SUN/Lab%20Exams/CHEZ101%2... Submit Answer kJ/mol Tries 0/2 7. Consider the following reactions: A-B AH =...
IN ILLIULIOL JU_SUN/Lab%20Exams/CHEZ101%2... Submit Answer kJ/mol Tries 0/2 7. Consider the following reactions: A-B AH = 272 kJ C-B AH = 36 kJ What is AH for A C ? It is possible that your answer could be either positive or negative. If it is negative, you must include the "minus" sign. Enter your answer as a decimal number. k] Tries 0/2 Submit Answer 8. Consider the following reactions: A + 2B - C + D AH = -224 kJ...
2. A 49.21 mL volume of 1.00 M HCl was mixed with 48.05 mL of 2.00...
2. A 49.21 mL volume of 1.00 M HCl was mixed with 48.05 mL of 2.00 M NaOH in a coffee cup calorimeter (with calorimeter constant = 25.6 J/°C) at 20.32 °C. The final temperature of the aqueous solution after the reaction was 29.83 °C. Assuming that them heat capacity of the solution is 4.18 J/g/°C, calculate the following: a. The total mass of aqueous solution inside the calorimeter (dsoln = 1.00 g/mL) g correct 1/1 b. The change in...
Table 1: Bond Onders and Bond Energies for Selected Molecules Bond Bond Molecule Lewis Structure Bond...
Table 1: Bond Onders and Bond Energies for Selected Molecules Bond Bond Molecule Lewis Structure Bond Energy Order (kJ/mol HF H-8: H-F 1 570 HCI H-C: H-C1 11 432 HBr H-Br 366 НІ H-I 298 Cl2 C1-C1 1 Br-Br I-I 151 H2 Η-Η H-H 436 HO :0-H O-H REF 243 193 B12 498 н HH I H-C-C- H3CCH3 H C-C C-H 376 420 HH HH HCCH C-C C-H 720 444 H-C=C-H CO2 C-O 804 H-C-H H.CO C-O C-H 782 364...
11. Consider the reaction: M + 2HO → MOg + H2 When 0.25 mol of the...
11. Consider the reaction: M + 2HO → MOg + H2 When 0.25 mol of the metal, M, reacted with an aqueous HCI solution (the HCl is in excess), the temperature of the solutian rose because the reactian preduced 3460 1 of heat. What is o in i] ser mol of H for It is possible that your answer could be either positive or negative. If it is negative, you must include the "minus" sign. Enter your answer as a...
Hi, please help 1)Draw two molecules that could hydrogen bond with each other. Draw and indicate...
Hi, please help 1)Draw two molecules that could hydrogen bond with each other. Draw and indicate the H-bond and label which is the donor and acceptor. 2) Look up the structure of the subunit of hemerythrin, an oxygen binding protein from invertebrates. It has been found that in some α-helical regions of the protein, about every third or fourth amino acid residue is a hydrophobic one. Suggest a reason for this finding, based on the structure you found. 3) Which...
Atoms can bond to other atoms to make molecules. Atoms sometimes break these bonds and form...
Atoms can bond to other atoms to make molecules. Atoms sometimes break these bonds and form them in a different way. For example, it is possible to take two molecules of hydrogen (H_2) and one molecule of oxygen (O_2), put them near one another, give them a little spark to help them start a reaction, and you will end up with two molecules of water (H_2O). Do you see what happened? Some of the H-H bonds and the O-O bonds...
Please help with 1, 3, and 4 :) A. ΔHsolution of NaOH(s) Phase Change: Mass of...
Please help with 1, 3, and 4 :)
A. ΔHsolution of NaOH(s) Phase
Change:
Mass of NaOH: 1.81 g
ΔT for reaction A : 6 °C
B. ΔHsolution for neutralization of
HCl(aq) and NaOH(aq):
Volume of HCl: .05 L
Volume of NaOH: .05 L
Volume total: .10 L
Molarity of HCl: 2.08 M
Molarity of NaOH: 2.08 M
ΔT for reaction B: 12°C
C. ΔH for Reaction of HCl(aq) and
NaOH(s):
Volume of HCl: .055 L
Volume of water: .045...
1.00 M HCL t2 = 60.06 °C t1 = 21.62 °C Mass Mg = .500 g...
1.00 M HCL
t2 = 60.06 °C t1 = 21.62 °C Mass Mg = .500 g For reaction 1: MgO(s) + 2 HCl(aq) ----> MgCl2(aq) + H20(1). 1.6 Enter q (in kJ). 1.74 kJ Computer's answer now shown above. You are correct. Previous Tries Your receipt no. is 158-3788 ? 1.7 Enter AH (in kJ). -1.74 kJ Computer's answer now shown above. You are correct. Previous Tries Your receipt no. is 158-1858 ? 1.8 Enter the number of moles of...
1.. Which statement is correct about the changes in potential energy and kinetic energy when two...
1.. Which statement is correct about the changes in potential energy and kinetic energy when two N atoms combine to form an N2 molecule? Group of answer choices a. The potential energy becomes more negative and the kinetic energy increases. b. The potential energy becomes more positive and the kinetic energy decreases. c. The potential energy becomes more positive and the kinetic energy increases. d. The potential energy becomes more negative and the kinetic energy decreases. 2.. You take solid...
p1 P1. Write a balanced chemical equation for each combustion reaction. Assume that combustion is complete. The fo...
p1
P1. Write a balanced chemical equation for each combustion reaction. Assume that combustion is complete. The formulas and the line-bond structures for the compounds are given on the previous page. Write your equations so that liquid water is one of the products. Ethanol: Ethyl acetate: mm For onoh fuol'c combuetion reaction fill in the tables belo for the number of each AHr = [(4 x 413 kJ/mol for the C-H bonds in one mole of methane)+ (2 x 495...
IN ILLIULIOL JU_SUN/Lab%20Exams/CHEZ101%2... Submit Answer kJ/mol Tries 0/2 7. Consider the following reactions: A-B AH = 272 kJ C-B AH = 36 kJ What is AH for A C ? It is possible that your answer could be either positive or negative. If it is negative, you must include the "minus" sign. Enter your answer as a decimal number. k] Tries 0/2 Submit Answer 8. Consider the following reactions: A + 2B - C + D AH = -224 kJ...
Table 1: Bond Onders and Bond Energies for Selected Molecules Bond Bond Molecule Lewis Structure Bond Energy Order (kJ/mol HF H-8: H-F 1 570 HCI H-C: H-C1 11 432 HBr H-Br 366 НІ H-I 298 Cl2 C1-C1 1 Br-Br I-I 151 H2 Η-Η H-H 436 HO :0-H O-H REF 243 193 B12 498 н HH I H-C-C- H3CCH3 H C-C C-H 376 420 HH HH HCCH C-C C-H 720 444 H-C=C-H CO2 C-O 804 H-C-H H.CO C-O C-H 782 364...
11. Consider the reaction: M + 2HO → MOg + H2 When 0.25 mol of the metal, M, reacted with an aqueous HCI solution (the HCl is in excess), the temperature of the solutian rose because the reactian preduced 3460 1 of heat. What is o in i] ser mol of H for It is possible that your answer could be either positive or negative. If it is negative, you must include the "minus" sign. Enter your answer as a...
Atoms can bond to other atoms to make molecules. Atoms sometimes break these bonds and form them in a different way. For example, it is possible to take two molecules of hydrogen (H_2) and one molecule of oxygen (O_2), put them near one another, give them a little spark to help them start a reaction, and you will end up with two molecules of water (H_2O). Do you see what happened? Some of the H-H bonds and the O-O bonds...
Please help with 1, 3, and 4 :)
A. ΔHsolution of NaOH(s) Phase
Change:
Mass of NaOH: 1.81 g
ΔT for reaction A : 6 °C
B. ΔHsolution for neutralization of
HCl(aq) and NaOH(aq):
Volume of HCl: .05 L
Volume of NaOH: .05 L
Volume total: .10 L
Molarity of HCl: 2.08 M
Molarity of NaOH: 2.08 M
ΔT for reaction B: 12°C
C. ΔH for Reaction of HCl(aq) and
NaOH(s):
Volume of HCl: .055 L
Volume of water: .045...
1.00 M HCL
t2 = 60.06 °C t1 = 21.62 °C Mass Mg = .500 g For reaction 1: MgO(s) + 2 HCl(aq) ----> MgCl2(aq) + H20(1). 1.6 Enter q (in kJ). 1.74 kJ Computer's answer now shown above. You are correct. Previous Tries Your receipt no. is 158-3788 ? 1.7 Enter AH (in kJ). -1.74 kJ Computer's answer now shown above. You are correct. Previous Tries Your receipt no. is 158-1858 ? 1.8 Enter the number of moles of...
p1
P1. Write a balanced chemical equation for each combustion reaction. Assume that combustion is complete. The formulas and the line-bond structures for the compounds are given on the previous page. Write your equations so that liquid water is one of the products. Ethanol: Ethyl acetate: mm For onoh fuol'c combuetion reaction fill in the tables belo for the number of each AHr = [(4 x 413 kJ/mol for the C-H bonds in one mole of methane)+ (2 x 495...
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