Answer: 25g/ml
Explanation:
Density = 100.0g/ 4.0mL = 25g/mL
Answer:
the answers is 1.204×10/23
Explanation:
idek
Answer :
(a) The energy is,
(b) The wavelength (in nm) is,
Explanation :
The general formula for the wavelength of spectral line emitted by a hydrogen atom, when it makes a transition from shell to shell is,
where,
= wavelength
Rydberg's Constant =
In this, and
conversion used :
Now we have to calculate the energy.
Formula used :
= Wavelength =
E = energy = ?
c = speed of light =
h = Planck's constant =
Now put all the given values in the above formula, we get:
Therefore, the energy is
- <u>A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change is called a catalyst.</u>
<em>Hope</em><em> </em><em>it</em><em> </em><em>helps</em><em> </em><em>~</em>