Which of the following happens to the particles when the temperature of liquid water drops?
1 answer:
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Answer:
The wavelength the light emitted by a hydrogen atom during a transition is 1006 nm.
Explanation:
By using Rydberg's Equation we cab determine the wavelength of the light:
Where,
= Energy difference
= Rydberg's Constant
= Final energy level
= Initial energy level
We have : , Z = 1
Now by using Plank's equation we can determine the wavelength of the light emitted.
E = Energy of the emitted light
h = Planck's constant =
c = speed of light =
For the given transition the energy of the light = E
The wavelength the light emitted by a hydrogen atom during a transition is 1006 nm.
Answer: -
60 mL of potassium chloride 20% should be diluted to prepare 480 ml of potassium chloride 2.5%
Explanation: -
Volume of potassium chloride solution = 480 mL
Percentage of potassium chloride = 2.5%
Amount of Potassium chloride = x 480 mL
= 12 mL
Let the required amount be R.
20 % of R = 12 mL.
x R = 12mL
R = 60 mL.
Thus, 60 mL of potassium chloride 20% should be diluted to prepare 480 ml of potassium chloride 2.5%