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3 years ago

Explain and define the angular momentum quantum number without the internet

Chemistry

1 answer:

brilliants [131]3 years ago

4 0

Answer:

The angular momentum quantum number, l, describes the shape of the orbital that an electron occupies. The lowest possible value of l is 0, and its highest possible value, depending on the principal quantum number, is n - 1.

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The Henry's law constant for helium gas in water at 30 °C is 3.70 × 10-4 M/atm. When the partial pressure of helium above a samp

igor_vitrenko [27]

Answer:

The concentration of helium in the water is 2.405×10^-4 M

Explanation:

Concentration = Henry's law constant × partial pressure of helium

Henry's law constant = 3.7×10^-4 M/atm

Partial pressure of helium = 0.65 atm

Concentration = 3.7×10^-4 × 0.65 = 2.405×10^-4 M

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3 years ago

9. What happens to the thermal energy that is added to the water between 4 and 11 minutes?

Sedaia [141]

Answer:

C. It causes the particles to move faster

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4 years ago

1. A gas has a volume of 45 L at a pressure of 140 kPa. What is the volume when

pishuonlain [190]

Answer:

The new volume of the gas is 21 L.

Explanation:

Volume of a gas is inversely proportional to its pressure at constant temperature such that,

$V\propto \dfrac{1}{P}$

$P_1V_1=P_2V_2$

We have,

$V_1=45\ L\\\\P_1=140\ kPa \\\\P_2=300\ kPa$

It is required to find V₂. Using above law or Boyle's law such that :

$V_2=\dfrac{P_1V_1}{P_2}\\\\V_2=\dfrac{140\times 45}{300}\\\\V_2=21\ L$

So, the new volume of the gas is 21 L.

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3 years ago

What is the pH of a solution with [H+]=6.2x10-9 M?

Serga [27]

Answer: 8.2

Explanation:

pH of a solution is - Log [ H+].

pH = - Log [ 6.2 x 10-9 M]

= 9 - 0.7924

pH = 8.24 approx 8.2

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3 years ago

Using isotope, can we trace back again our ancestors? How?

lidiya [134]

Answer:

<h2><em><u>The answer is yes, we can trace back again our ancestors by using isotope. These isotopes are not just there to just exist, some of them are also useful in different kind of field especially in history and medical</u></em>.</h2>

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3 years ago