Chem equations

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13 Terms

1
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frequency equation

c=λv

2
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c=?

speed of light;

(2.9979 x 10^8 m/sec)

3
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λ=?

wavelenght;

(they are often given in nm, so you must multiply by 10^-9 to convert to m)

4
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v=?

frequency;

(1/sec)

5
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energy from wavelength equation

E=hv

6
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E=?

energy;

(joules(J))

7
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h=?

planks Constant;

(6.626 x 10^-34 J*sec)

8
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What is the Rydberg formula for energy?

E = R [ (1 / n^2) - (1 / f^2) ]

9
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What does a positive value of E indicate in the Rydberg formula?

Energy absorption

10
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What does a negative value of E indicate in the Rydberg formula?

Energy emission

11
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R=?

2.178 x 10^-18 Joules(J)

12
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n=?

final energy level

13
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f=?

intitial energy level