Homework Answers
Given:
Delta E = 1280 J
W = 800 J
Positive because works done on the system
Use:
Delat E = Q + W
1280 J = Q + 800 J
Q = 480 J
Answer: 480 J
Add Answer to:
Use the References to access important values if needed for this question. A chemical reaction is...
Use the References to access important values if heededor A chemical reaction is run in which the surroundings are...
Use the References to access important values if heededor A chemical reaction is run in which the surroundings are cooled by 300 J, and 272 J of work is done on the system. Calculate the change in the internal energy of the chemical system. AE = Submit Answer Retry Entire Group 4 more group attempts remaining
eierences to access important values if needed for this question. A chemical reaction is run in...
eierences to access important values if needed for this question. A chemical reaction is run in which 139 Joules of heat are generated and 750 Joules of work are done by the system. Calculate the change in the internal energy of the chemical system. A E= Joules es important values if needed for this question. The following thermochemical equation is for the reaction of hydrogen sulfide(g) with oxygen(g) to form water(g) and sulfur dioxide(g) 2H S(g) + 302(9) 2H2O(g) +...
Use the References to access important values if needed for this question. A reaction profile (not to scale!) for t...
Use the References to access important values if needed for this question. A reaction profile (not to scale!) for the reaction 03+ 0 202 is shown below: E (kJ) OL Visited Os + 392 O2 + O2 reg Reaction Coordinate This reaction is (exothermic endothermic) The value of the activation energy for this reaction is kJ and the value of AE is Teo Submit Answer Retry Entire Group 9 more group attempts remaining
Use the References to access important values if needed for this question. Write the net ionic...
Use the References to access important values if needed for this question. Write the net ionic equation for the precipitation of silver chloride from aqueous solution: Submit Answer Retry Entire Group 9 more group attempts remaining Use the References to access important values if needed for this question. Write the net ionic equation for the precipitation of silver bromide from aqueous solution: Submit Answer Retry Entire Group 9 more group attempts remaining Use the References to access important values if...
[Review Topical (References Use the References to access important values if needed for this question. When...
[Review Topical (References Use the References to access important values if needed for this question. When N(E) reacts with H(:) to form NH3(8), 22.0 kcal of energy are evolved for each mole of NC) that reacts. Write a balanced equation for the reaction with an energy termin kcal as part of the equation Use the SMALLEST INTEGER coefficients possible and put the energy termin an appropriate box. If a box is not needed, leave it blank Visited Submit Answer Retry...
[References) Use the References to access important values if needed for this question. The free energy...
[References) Use the References to access important values if needed for this question. The free energy change for the following reaction at 25 °C, when Cu2+] = 1.16 M and Co?'] = 3.17X10M, is -134 KJ: Cu2+(1.16 M) + Co(s) Cu(s) + Co2+(3.17X10M) AG = -134 kJ What is the cell potential for the reaction as written under these conditions? Answer: Would this reaction be spontaneous in the forward or the reverse direction? Hot Visited Submit Answer Retry Entire Group...
[Review Toples) [References) Use the References to access important values if needed for this question. Write...
[Review Toples) [References) Use the References to access important values if needed for this question. Write a balanced equation for the decomposition reaction described, using the smallest possible integer coefficients. When ammonium chloride decomposes, ammonia and hydrochloric acid are formed. Submit Answer Retry Entire Group 9 more group attempts remaining [Review Topics] [References] Use the References to access important values if needed for this question. Write a balanced equation for the decomposition reaction described, using the smallest possible integer coefficients...
Use the References to access important values if needed for this question. The volume of water...
Use the References to access important values if needed for this question. The volume of water needed to dissolve 0.0661 grams of barium sulfite is L. Assume no volume change upon addition of the solid. Submit Answer Retry Entire Group 7 more group attempts remaining Use the References to access important values if needed for this question. The mass of cobalt(II) hydroxide that is dissolved in 225 mL of a saturated solution is grams. Submit Answer Retry Entire Group 7...
Use the References to access important values if needed for this question. A sample of solid...
Use the References to access important values if needed for this question. A sample of solid lead is heated with an electrical coil. If 31.5 Joules of energy are added to a 12.6 gram sample and the final temperature is 38.6°C, what is the initial temperature of the lead? Answer: Submit Answer Retry Entire Group 9 more group attempts remaining 9 DO Previous Next
please help Use the References to access important values if needed for this question. For the...
please help
Use the References to access important values if needed for this question. For the reaction 2NO(g) + O2(g)—2NO2(g) AGⓇ --63.8 kJ and AS - -146.5 J/K at 344 K and I atm. The maximum amount of work that could be done by this reaction when 1.76 moles of NO(g) react at standard conditions at this temperature is kJ. Submit Answer Retry Entire Group 9 more group attempts remaining lo access important values if needed for this question. For...
Use the References to access important values if heededor A chemical reaction is run in which the surroundings are cooled by 300 J, and 272 J of work is done on the system. Calculate the change in the internal energy of the chemical system. AE = Submit Answer Retry Entire Group 4 more group attempts remaining
eierences to access important values if needed for this question. A chemical reaction is run in which 139 Joules of heat are generated and 750 Joules of work are done by the system. Calculate the change in the internal energy of the chemical system. A E= Joules es important values if needed for this question. The following thermochemical equation is for the reaction of hydrogen sulfide(g) with oxygen(g) to form water(g) and sulfur dioxide(g) 2H S(g) + 302(9) 2H2O(g) +...
Use the References to access important values if needed for this question. A reaction profile (not to scale!) for the reaction 03+ 0 202 is shown below: E (kJ) OL Visited Os + 392 O2 + O2 reg Reaction Coordinate This reaction is (exothermic endothermic) The value of the activation energy for this reaction is kJ and the value of AE is Teo Submit Answer Retry Entire Group 9 more group attempts remaining
Use the References to access important values if needed for this question. Write the net ionic equation for the precipitation of silver chloride from aqueous solution: Submit Answer Retry Entire Group 9 more group attempts remaining Use the References to access important values if needed for this question. Write the net ionic equation for the precipitation of silver bromide from aqueous solution: Submit Answer Retry Entire Group 9 more group attempts remaining Use the References to access important values if...
[Review Topical (References Use the References to access important values if needed for this question. When N(E) reacts with H(:) to form NH3(8), 22.0 kcal of energy are evolved for each mole of NC) that reacts. Write a balanced equation for the reaction with an energy termin kcal as part of the equation Use the SMALLEST INTEGER coefficients possible and put the energy termin an appropriate box. If a box is not needed, leave it blank Visited Submit Answer Retry...
[References) Use the References to access important values if needed for this question. The free energy change for the following reaction at 25 °C, when Cu2+] = 1.16 M and Co?'] = 3.17X10M, is -134 KJ: Cu2+(1.16 M) + Co(s) Cu(s) + Co2+(3.17X10M) AG = -134 kJ What is the cell potential for the reaction as written under these conditions? Answer: Would this reaction be spontaneous in the forward or the reverse direction? Hot Visited Submit Answer Retry Entire Group...
[Review Toples) [References) Use the References to access important values if needed for this question. Write a balanced equation for the decomposition reaction described, using the smallest possible integer coefficients. When ammonium chloride decomposes, ammonia and hydrochloric acid are formed. Submit Answer Retry Entire Group 9 more group attempts remaining [Review Topics] [References] Use the References to access important values if needed for this question. Write a balanced equation for the decomposition reaction described, using the smallest possible integer coefficients...
Use the References to access important values if needed for this question. The volume of water needed to dissolve 0.0661 grams of barium sulfite is L. Assume no volume change upon addition of the solid. Submit Answer Retry Entire Group 7 more group attempts remaining Use the References to access important values if needed for this question. The mass of cobalt(II) hydroxide that is dissolved in 225 mL of a saturated solution is grams. Submit Answer Retry Entire Group 7...
Use the References to access important values if needed for this question. A sample of solid lead is heated with an electrical coil. If 31.5 Joules of energy are added to a 12.6 gram sample and the final temperature is 38.6°C, what is the initial temperature of the lead? Answer: Submit Answer Retry Entire Group 9 more group attempts remaining 9 DO Previous Next
please help
Use the References to access important values if needed for this question. For the reaction 2NO(g) + O2(g)—2NO2(g) AGⓇ --63.8 kJ and AS - -146.5 J/K at 344 K and I atm. The maximum amount of work that could be done by this reaction when 1.76 moles of NO(g) react at standard conditions at this temperature is kJ. Submit Answer Retry Entire Group 9 more group attempts remaining lo access important values if needed for this question. For...
Most questions answered within 3 hours.
-
(CO 2) A field can be added to a report to
values for two or more...
asked 27 minutes ago -
Identify 3 research scenarios that might provide a low,
medium, and high degree of variability in...
asked 50 minutes ago -
how
does gravity affect the trajectory of projectile? what would be the
shape of the trajactory...
asked 1 hour ago -
Two small plastic spheres are given positive electrical charges.
When they are a distance of 15.4...
asked 1 hour ago -
An acidic solution containing gold ions is
electrolyzed, producing gaseous oxygen (from water) at the anode...
asked 2 hours ago -
Assume that the population of Mexico is 128
million and that the population increases 1.01
percentannually....
asked 3 hours ago -
Can someone please help me add appropriate descriptive
comments to each line of code in the...
asked 3 hours ago -
Romeo wishes to throw a bouquet of flowers to Juliet, who is on
a second-story balcony,...
asked 4 hours ago -
Why is QE a controversial monetary policy tool.
A. It may lead to excessive inflation.B. By...
asked 4 hours ago -
Principles of Programming midterm study guide help!
1.)
______ Which of the following would reference the...
asked 3 hours ago -
A finite potential well has depth U0 = 2.78 eV . What is the
penetration distance...
asked 4 hours ago -
1. The bus bars of a power station are in two sections A and B
separated...
asked 4 hours ago