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Vinvika [58]
3 years ago
8

Ammonia is produced by the chemical reaction of hydrogen and nitrogen

Chemistry
1 answer:
MaRussiya [10]3 years ago
6 0

Answer:

3.6 mol H₂

Explanation:

  • N₂ + 2H₂ → 2NH₃

In order to convert from N₂ moles to H₂ moles we need to use a conversion factor. This conversion factor has to have<u> N₂ moles in the denominator and H₂ moles in the numerator</u>, using the <em>stoichiometric coefficients</em> of the reaction, as follows:

  • 1.8 mol N₂ * \frac{2molH_2}{1molN_2} = 3.6 mol H₂
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Why is it that no two elements have the exact same emission spectrum?​
jonny [76]

Answer:

When atoms are excited they emit light of certain wavelengths which correspond to different colors. Each element produces a unique set of spectral lines. Since no two elements emit the same spectral lines, elements can be identified by their line spectrum.

Explanation:

5 0
3 years ago
Which best describes the molecules of an ideal gas
Serhud [2]
Options are as follow,

A)  <span>Constant volume, no intermolecular forces of attraction,energy loss in collisions 

B)  </span><span>No volume, strong intermolecular forces of attraction, perfectly elastic collisions

C)  </span><span>Constant volume, no intermolecular forces of attraction, energy gain during collisions

D)  </span><span>No volume, no intermolecular forces of attraction, perfectly elastic collisions

Answer:
            Option-D (</span>No volume, no intermolecular forces of attraction, perfectly elastic collisions) is the correct answer.

Explanation:
                   As we know there are no interactions between gas molecules due to which they lack shape and volume and occupies the shape and volume of container in which they are kept. So, we can skip Option-B. 
                   Secondly we also know that the gas molecules move randomly. They collide with the walls of container causing pressure and collide with each other. And these collisions are perfectly elastic and no energy is lost or gained during collisions. Therefore Option-A and C are skipped.
                   Now we are left with only Option-D, In option D it is given that ideal gas has no volume. This is true related to Ideal gas as it is stated in ideal gas theories that molecules are far apart from each other and the actual volume of gas molecules compared to volume of container is negligible. Hence, for ideal gas Option-D is a correct answer.
4 0
3 years ago
‼️Stoichiometry / moles problem: ‼️
BaLLatris [955]
Amount of NH3 = 6.39 mol

Ratio of NH3 : Ratio of product
4 : 10

Hence, amount of product formed = 6.39/4 * 10 = 15.975mol = 16.0mol (3sf)
6 0
3 years ago
If sample A melts at 0 degrees Celsius, what temperature will sample C melt at?
Anton [14]
32 degrees F
0 degrees C= 32 degrees F
8 0
3 years ago
Calculate the Lattice Energy of KCl(s) given the following data using the Born-Haber cycle: ΔHsublimation K = 79.2 kJ/mol IE1 K
DanielleElmas [232]

Answer:

Explanation:

  The following equation relates to Born-Haber cycle

\triangle H_f = S + \frac{1}{2} B + IE_M - EA_X+ U_L

Where

\triangle H_f is enthalpy of formation

S is enthalpy of sublimation

B is bond enthalpy

IE_M is ionisation enthalpy of metal

EA_X is electron affinity of non metal atom

U_L is lattice energy

Substituting the given values we have

-435.7 = 79.2 + 1/2 x 242.8 + 418.7 - 348 +U_L

U_L = - 707 KJ / mol

3 0
3 years ago
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