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Question 1 of 2
1. Question
.

A chemist examining a hydrogen emission spectrum measures the frequency of the convergence limit of hydrogen to be 3.42 × 10^{15} Hz.
a. Use this to calculate the ionization energy, in joules, for a hydrogen atom.
Answer (to 3 sig. figs): * 10^{18} J
b. Calculate the energy in kJmol^{1}
Answer (to 3 sig. figs): * 10^{3} kJmol^{1}
c. Calculate the corresponding wavelength of the frequency that was measured.
Answer (to 3 sig. figs): * 10^{8}m
Constants and formulas from sections 1 and 2 of the data booklet:
E=hν
c=νλ
Avogadro’s constant (L) = 6.02 × 10^{23} mol^{−1}
Planck’s constant (ℎ) = 6.63 × 10^{−34} J s
Speed of light = 3.00 × 10^{8} ms^{−1}
Correct 3 / 3 PointsIncorrect / 3 Points 

Question 2 of 2
2. Question
.

A student measures the wavelength of the convergence limit of hydrogen to be 90.9 nm
a. Find the corresponding frequency, in Hertz (s^{1}) , of the wavelength that was measured.
Answer (to 3 sig. figs): * 10^{15}Hz
b. Calculate the ionization energy, in joules, for a hydrogen atom
Answer (to 3 sig. figs): * 10^{18} J
c. Calculate the ionization energy in kJmol^{1}
Answer (to 3 sig. figs): * 10^{3 }kJmol^{1}
Constants and formulas from sections 1 and 2 of the data booklet:
E=hν
c=νλ
Avogadro’s constant (L) = 6.02 × 10^{23} mol^{−1}
Planck’s constant (ℎ) = 6.63 × 10^{−34} J s
Speed of light = 3.00 × 10^{8} ms^{−1}
Correct 3 / 3 PointsIncorrect / 3 Points 