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Eddi Din [679]
3 years ago
6

Please help with chem final need answers within one hour i’ll give brainliest

Chemistry
1 answer:
Dahasolnce [82]3 years ago
7 0

Answer:

1. 7

2. 7

3. 16.60

Explanation:

1. 7

3x-3=18

+3 +3

3x=21

/3 /3

x=7

2. 7

4x-5=23

+5. +5

4x=28

/4. /4

x=7

3. 16.60

it reaches above the halfway point after 16, and it's one above it. So, it's 16.60

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Explanation:

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As it is given that energy of a hydrogen atom and a helium atom is same.

Let us assume that E_{hydrogen} = E_{helium} = E'. Hence, relation between their wavelengths will be calculated as follows.

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E_{helium} = \frac{hc}{\lambda_{helium}}         ... (2)

Equating the equations (1) and (2) as follows.

E_{hydrogen} = E_{helium} = E'\\\frac{hc}{\lambda_{hydrogen}} = \frac{hc}{\lambda_{helium}} = E'\\\lambda_{helium} = \lambda_{hydrogen} = E'

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