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What is the wavelength of the line corresponding to n=4 in the balmer series? express your answer in nanometers to three significant figures?

Alexa Spicer

in Chemistry

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Jeremy Wood on December 17, 2018

The expression for the Balmer series to find the wavelength of the spectral line is as follows:1 / λ = R Where, l is the wavelength, R is the constant of Rydberg, and n is the integral value (4 here → Fourth level) to Replace 1.097 x 10⁷ m⁻1 for R and 4 for n in the above equation 1 / λ = (1.097 x 10⁷ m⁻1) = 0.20568 x 10⁷ m⁻1λ = 4.86 x 10⁻⁷ m since 1 m = 10 ⁹ nmλ = 486 nm


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