Homework Answers
From the balanced equation
5 moles of O2 reacts to release 531 kCal of energy
If 7.40mol O2 reacts , the energy produced = 7.40mol x 531 kcal /5
mol
= 785.88 kcal
energy released = 785.88kcal
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3 attempts left Check my work Enter your answer in the provided box. Report pro Given...
1 attempts left Check my work Enter your answer in the provided box. Ammonia (NH3) decomposes...
1 attempts left Check my work Enter your answer in the provided box. Ammonia (NH3) decomposes to hydrogen and nitrogen and 22.0 kcal/mol of energy is absorbed. 2 NHj(g) 3 H2(8) + N2(g) AH +22.0 kcal/mol How much energy is absorbed when 2.63 g of NHj reacts? keal of energy absorbed Report your answer to appropriate number of significant figures.
6 3 attempts let Check my work Enter your answer in the provided box. Report problem...
6 3 attempts let Check my work Enter your answer in the provided box. Report problem points The formula for rust can be represented by FeO, How many moles of Fe are present in 21.5 g of the compound? Hint eBook mol Fe Solution Print Guided Solution References
1.00 points 3 attempts left Check my work 2 Enter your answer in the provided box....
1.00 points 3 attempts left Check my work 2 Enter your answer in the provided box. The rate constant for the second-order reaction: 2NOBr(g) → 2NO(g) + Br2(g) is 0.800-s) at 10°C. Starting with a concentration of 0.86 M, calculate the concentration of NOBr Report problem Hint Solution Guided Solution after 67 s. Be sure to report your answer to the correct number of significant figures. References eBook &Resources
5 attempts left Check my work Enter your answer in the box provided. Report problem The...
5 attempts left Check my work Enter your answer in the box provided. Report problem The [a] of pure quinine, an antimalarial drug, is -165. If a solution contains 64% quinine and 36% of its enantiomer (ee = 28%), what is (a) for the solution? Hint points (8 03:48:59 Solution Guided Solution eBook HO H References CH30 quinine (antimalarial drug) [a] =>
3 attempts left Check my work Enter your answer in the provided box. An old piece...
3 attempts left Check my work Enter your answer in the provided box. An old piece of wood has a carbon-14 content of 0.0156 times that of a freshly cut piece of wood. What is the age of the old wood if the half-life of C is 5,736 years? Report prol Hint Solution years old Guided Solutio
3 attempts left Check my work Enter your answer in the provided box Calculate AH nxn...
3 attempts left Check my work Enter your answer in the provided box Calculate AH nxn for the following: points eBook CH4(%) + Ch) CC14() + HCl() (unbalanced] Ask Print References AH ICH,®) =-74.87 kJ/mol AH CCu(e) = -96.0 kJ/mol AH (CC140) = -139 kJ/mol AH (HCI@)] = -92.31 kJ/mol AH (HCl(aq)] = -167.46 kJ/mol AH (C1(2)) = 121.0 kJ/mol Prev 8 of 15 H N
3 attempts left Check my work Enter your answer in the provided box. Calculate AG for...
3 attempts left Check my work Enter your answer in the provided box. Calculate AG for the reaction at 25°C. 2C6H61) + 1502(8) 12C028) + 6H20(1) agº = kJ AH° (kJ/mol Agº (kJ/mol) sº (J/K mol) 5.69 2.4 Substance C(graphite) C(diamond) CO(g) CO2(g) CO2(aq) C0,- (aq) O(g) O2(8) O3(aq) O3(8) H20(1) CH 1.90 -110.5 -393.5 -412.9 -676.3 249.4 2.87 --137.3 -394.4 -386.2 --528.1 230.1 0 16.3 163.4 -237.2 124.5 197.9 213.6 121.3 -53.1 160.95 205.0 110.88 237.6 -12.09 142.2 -285.8...
3 attempts left Check my work Enter your answer in the provided box. Using the balanced...
3 attempts left Check my work Enter your answer in the provided box. Using the balanced equation for fermentation answer the following question. CH1206(aq) → 2 CH 0(aq) + 2 CO2(g) glucose ethanol How many grams of CO2 are formed from 0.35 mol of glucose? g CO2
Chapter 5 Chemical Reactions Saved 13 3 attempts left Check my work Enter your answer in...
Chapter 5 Chemical Reactions Saved 13 3 attempts left Check my work Enter your answer in the provided box. Report problem Using the balanced equation for fermentation answer the following question. Hint points C6H1206(aq) 2 C2H0(aq)+ 2 Co2() Solution glucose ethanol Guided Solution eBook How many grams of CO2 are formed from 0.40 mol of glucose?" gCO2 Print References 10
2 attempts left Check my work Enter your answer in the provided box. Hemoglobin is the...
2 attempts left Check my work Enter your answer in the provided box. Hemoglobin is the protein that transports 02 through the blood from the lungs to the rest of the body. In doing so, each molecule of hemoglobin combines with four molecules of O2. If 1.59 g of hemoglobin combines with 2.47 mL of O2 at 37°C and 731 torr, what is the molar mass of hemoglobin? 1 x10 g/mol
1 attempts left Check my work Enter your answer in the provided box. Ammonia (NH3) decomposes to hydrogen and nitrogen and 22.0 kcal/mol of energy is absorbed. 2 NHj(g) 3 H2(8) + N2(g) AH +22.0 kcal/mol How much energy is absorbed when 2.63 g of NHj reacts? keal of energy absorbed Report your answer to appropriate number of significant figures.
6 3 attempts let Check my work Enter your answer in the provided box. Report problem points The formula for rust can be represented by FeO, How many moles of Fe are present in 21.5 g of the compound? Hint eBook mol Fe Solution Print Guided Solution References
1.00 points 3 attempts left Check my work 2 Enter your answer in the provided box. The rate constant for the second-order reaction: 2NOBr(g) → 2NO(g) + Br2(g) is 0.800-s) at 10°C. Starting with a concentration of 0.86 M, calculate the concentration of NOBr Report problem Hint Solution Guided Solution after 67 s. Be sure to report your answer to the correct number of significant figures. References eBook &Resources
5 attempts left Check my work Enter your answer in the box provided. Report problem The [a] of pure quinine, an antimalarial drug, is -165. If a solution contains 64% quinine and 36% of its enantiomer (ee = 28%), what is (a) for the solution? Hint points (8 03:48:59 Solution Guided Solution eBook HO H References CH30 quinine (antimalarial drug) [a] =>
3 attempts left Check my work Enter your answer in the provided box. An old piece of wood has a carbon-14 content of 0.0156 times that of a freshly cut piece of wood. What is the age of the old wood if the half-life of C is 5,736 years? Report prol Hint Solution years old Guided Solutio
3 attempts left Check my work Enter your answer in the provided box Calculate AH nxn for the following: points eBook CH4(%) + Ch) CC14() + HCl() (unbalanced] Ask Print References AH ICH,®) =-74.87 kJ/mol AH CCu(e) = -96.0 kJ/mol AH (CC140) = -139 kJ/mol AH (HCI@)] = -92.31 kJ/mol AH (HCl(aq)] = -167.46 kJ/mol AH (C1(2)) = 121.0 kJ/mol Prev 8 of 15 H N
3 attempts left Check my work Enter your answer in the provided box. Calculate AG for the reaction at 25°C. 2C6H61) + 1502(8) 12C028) + 6H20(1) agº = kJ AH° (kJ/mol Agº (kJ/mol) sº (J/K mol) 5.69 2.4 Substance C(graphite) C(diamond) CO(g) CO2(g) CO2(aq) C0,- (aq) O(g) O2(8) O3(aq) O3(8) H20(1) CH 1.90 -110.5 -393.5 -412.9 -676.3 249.4 2.87 --137.3 -394.4 -386.2 --528.1 230.1 0 16.3 163.4 -237.2 124.5 197.9 213.6 121.3 -53.1 160.95 205.0 110.88 237.6 -12.09 142.2 -285.8...
3 attempts left Check my work Enter your answer in the provided box. Using the balanced equation for fermentation answer the following question. CH1206(aq) → 2 CH 0(aq) + 2 CO2(g) glucose ethanol How many grams of CO2 are formed from 0.35 mol of glucose? g CO2
Chapter 5 Chemical Reactions Saved 13 3 attempts left Check my work Enter your answer in the provided box. Report problem Using the balanced equation for fermentation answer the following question. Hint points C6H1206(aq) 2 C2H0(aq)+ 2 Co2() Solution glucose ethanol Guided Solution eBook How many grams of CO2 are formed from 0.40 mol of glucose?" gCO2 Print References 10
2 attempts left Check my work Enter your answer in the provided box. Hemoglobin is the protein that transports 02 through the blood from the lungs to the rest of the body. In doing so, each molecule of hemoglobin combines with four molecules of O2. If 1.59 g of hemoglobin combines with 2.47 mL of O2 at 37°C and 731 torr, what is the molar mass of hemoglobin? 1 x10 g/mol
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