A _______ is a repeating disturbance or vibration that transfers or moves energy from place to place without transporting mass.
1 answer:
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Answer:
Explanation:
To find the concentration; let's first compute the average density and the average atomic weight.
For the average density ; we have:
The average atomic weight is:
So; in terms of vanadium, the Concentration of iron is:
From a unit cell volume
where;
= number of Avogadro constant.
SO; replacing with
;
with
;
with
and
with
Then:
Replacing the values; we have:
Answer:
<h2>0.52 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>0.52 moles</h3>Hope this helps you