Answer:
<h2>0.81 moles</h2>
Explanation:
To find the number of moles in a substance given it's number of entities we use the formula
where n is the number of moles
N is the number of entities
L is the Avogadro's constant which is
6.02 × 10²³ entities
From the question we have
We have the final answer as
<h3>0.81 moles</h3>
Hope this helps you
Answer:
- <u><em>The nucleon number of carbon-14 is 14</em></u>
Explanation:
<em>Nucleons</em> are the particles that are in the nucleus of the atom, i.e. protons and neutrons.
So, the nucleon number is the number of protons and neutrons.
Other name for nucleon number is mass number, and it is represented by the letter A:
nucleon number = mass number = A = protons + neutrons.
Carbon-14 is the particular name, indicating the mass number, of the isotope of carbon with mass number 14.
So, the nucleon number of carbon-14 is indicated in its name, and it is 14.
The name <em>carbon-14 </em>identifies completely the isotope because, the atomic number of carbon is the same for every atom (isotope) of carbon:
- Atomic number = number of protons = Z = 6
- Mass number = A = 14
- Number of neutrons = N = Z - A = 14 - 6 = 8
From the conversion table:
1 meter = 100 cm
Therefore, all you need to do to convert <span>0.0075 meters to centimeters is cross multiplication as follows:
</span>0.0075 meters = (<span>0.0075 x 100) / 1 = 0.75 cm</span>
Gravitational. When trying to remember this, think about gravity and how it keeps things from floating.