All categories

3 years ago

For a hydrogen atom, which electronic transition would result in the emission of a photon with the highest energy?

Chemistry

1 answer:

BartSMP [9]3 years ago

6 0

Answer: A

Explanation:

Considering the order of filling electrons into orbitals, movement from a higher to a lower energy level results in the emission of a photon with energy equal to the energy difference between the two energy levels. However, the energies of different orbitals are close together for high values of n (principal quantum number). Their relative energies may change significantly when they form ions. This implies that energy levels are better separated and have high differences in energy for low values of n. Hence the answer. This means that photons transiting between these Lowe n levels will posses higher photon energy due to larger energy difference between levels.

You might be interested in

Solid to liquid change melting

Maurinko [17]

Answer:

The process of a solid becoming a liquid is called melting. (an older term that you may see sometimes is fusion). The opposite process, a liquid becoming a solid, is called solidification. For any pure substance, the temperature at which melting occurs—known as the melting point—is a characteristic of that substance.

Hope this helps, have a wonderful day/night, stay safe, happy holidays, and merry christmas!

3 0

3 years ago

A gas in a rigid container at 25C has a pressure of .96atm. A change in temperature causes the pressure to increase to 1.25 atm.

mars1129 [50]

<h2>Hello!</h2>

The answer is:

The new temperature of the gas is equal to 388.22 K

Since we have a rigid container, we can safely assume that the volume is kept constant.

To solve the problem, we need to use the Gay Lussac's Law, which states that the pressure and the volume of an ideal gas are proportional when the volume is kept constant.

Also, we need to remember that Gay Lussac's Law works with absolute temperature, so, we need to convert the given temperature (in celsius degrees) to Kelvin.

$T(K)=273.15 + T(\°C)\\\\T(K)=273.15 +25=298.15K$

So, using the Gay Lussac's equation, we have:

$\frac{P_1}{T_1}=\frac{P_2}{T_2}$

Where,

$P_1$ is equal to the first pressure.

$T_1$ is equal to the first temperature.

$P_2$ is equal to the new pressure.

$T_2$ is equal to the new temperature.

We are given the following information:

$P_1=0.96atm$

$T_1=298.15K$

$P_2=1.25atm$

Then, substituting and calculating, we have:

$T_2=P_2*\frac{T_1}{P_1}\\\\T_2=1.25atm*\frac{298.15K}{0.96atm}=388.22K$

Hence, the new temperature of the gas is equal to 388.22 K.

Have a nice day!

5 0

4 years ago

Calculate the solubility (in grams per 1.00×102mL of solution) of magnesium hydroxide in a solution buffered at pH = 12

GaryK [48]

The Ksp of Mg(OH)2 in water is 1.8 x 10-<span>11. This means that in pure water, Mg(OH)2 has a solubility of:
</span>∛[(1.8 x 10-11) / 4] = 1.65 x 10-4 mol/L
<span>which is equal to
</span>1.65 x 10-4<span> mol x (58.32) / 10 x 100 mL = 9.62 x 10-4g / 1x102 mL

If the pH is 12, the hydroxide concentration in the solvent is
10^-(14-12) = 0.01 mol/L
The solubility is solve using the formula
</span>1.8 x 10-11 = x (2(0.01 + x))^2
x = 4.5x10-8 mol/L
which is equal to
4.5x10-8 mol x (58.32) / 10 x 100 mL = 2.62 x 10-7g / 1x102 mL

8 0

4 years ago

Chemical Equations :p

Nata [24]

Explanation:

4NH₃ (g) + 5O₂ (g) → 4NO (g) + 6H₂O (g)
Ba(ClO₃)₂ (s) → BaCl₂ (s) + 3O₂ (g)
2Al (s) + 3Zn(NO₃)₂ (aq.) → 3Zn (s) + 2Al(NO₃)₃ (aq.)
2C₈H₁₈ (g) + 25O₂ (g) → 16CO₂ (g) + 18H₂O (g)

6 0

3 years ago

Convert oxygen+ hydrogen into formula equation and balance them

nika2105 [10]

Explanation:

2H2(g) + O2(g) → 2H2O(l ) Chemical equations give the following information about chemical reactions. Chemical equations show the formulas for the substances that take part in the reaction.

5 0

2 years ago