Answer: The wavelength of the x-ray wave is
Explanation:
To calculate the wavelength of light, we use the equation:
where,
= wavelength of the light = ?
c = speed of x-ray=
= frequency of x-ray =
Putting in the values:
Thus the wavelength of the x-ray wave is
Answer:
<h2>1.23 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>1.23 moles</h3>Hope this helps you