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Mnenie [13.5K]
3 years ago
14

The bond enthalpy in no is 632 kj/mol and that of each no bond in no2 is 469 kj/mol. explain the difference in bond enthalpies b

etween the two molecules. 1. the bond type does not explain the difference. 2. no has a singl
Chemistry
1 answer:
Solnce55 [7]3 years ago
3 0
Bond enthalpy or bond energy is the amount of energy that is needed in order to break or take out one mole of the substance. The bond energy is varied between the compounds NO and NO₂ because of the different configuration of the atoms in order to form the compound.

That being said, it is also noted that the bonds will have different lengths and the molecules will have different shape and are also composed of different numbers of atoms. 
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Answer:

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Solid lithium hydroxide is used to "scrub" CO2 from the air inspacecraft and submarines; it reacts with the CO2 to produce lithi
ArbitrLikvidat [17]

Answer:

223 L

Explanation:

Step 1: Write the balanced equation.

2 LiOH + CO₂ = Li₂CO₃ + H₂O

Step 2: Calculate the moles corresponding to 440 g of LiOH

The molar mass of LiOH is 23.95 g/mol.

440 g × (1 mol/23.95 g) = 18.4 mol

Step 3: Calculate the moles of CO₂ that react with 18.4 moles of LiOH

The molar ratio of LiOH to CO₂ is 2:1. The reacting moles of CO₂ are 1/2 × 18.4 mol = 9.20 mol.

Step 4: Convert 20°C to Kelvin

K = °C + 273.15 = 20 + 273.15 = 293 K

Step 5: Convert 753 torr to atm

753 torr × (1 atm/760 torr) = 0.991 atm

Step 6: Calculate the volume of CO₂

We will use the ideal gas equation.

P × V = n × R × T

V = n × R × T / P

V = 9.20 mol × (0.0821 atm.L/mol.K) × 293 K / 0.991 atm

V = 223 L

7 0
3 years ago
A solution of HCl has mc012-1.jpg = 0.01 M. What is the pH of this solution?
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PLEASE HELP MEDALS WILL BE AWARDED!!!
ruslelena [56]

Mole percent of O2 = 10% = 0.1 moles
Mole percent of N2 = 10% = 0.1 moles
Mole percent of He = 80% = 0.8 moles
Molar Mass of O2 = (2 x 16) x 0.1 = 3.2
Molar Mass of N2 = (2 x 14) x 0.1 = 2.8
Molar Mass of He = 4 x 0.8 = 3.2
1. Molar Mass of the mixture = 3.2 + 2.8 + 3.2 = 9.2 grams
2. Since at constant volume density is proportional to mass, so the ratio of
mass will be the ratio of density.
Ratio = Molar Mass of the mixture / Molar Mass of O2 = 9.2 / 32 = 0.2875




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Is petroleum potential or kinetic energy
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Petroleum is a potential.
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