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Full of the data, examples, and difficulties you want to learn how to "think like a chemist," CHEMISTRY: AN ATOMS FIRST procedure is designed that will help you develop into an autonomous problem-solver. The textual content starts off with insurance of the atom and proceeds during the notion of molecules, constitution, and bonding. This method, diverse out of your highschool direction, can assist you develop into a superb serious philosopher and a powerful problem-solver -- abilities that would be worthwhile to you in any occupation.

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Forty five. Carbon absorbs power at a wavelength of one hundred fifty. nm. the complete volume of strength emitted via a carbon pattern is 1. ninety eight ϫ a hundred and five J. Calculate the variety of carbon atoms found in the pattern, assuming that every atom emits one photon. forty six. X rays have wavelengths at the order of one ϫ 10Ϫ10 m. Calculate the power of one. zero ϫ 10Ϫ10 m X rays in devices of kilojoules in keeping with mole of X rays. (1 mol X rays ϭ 6. 022 ϫ 1023 X rays. ) AM radio waves have wavelengths at the order of one ϫ 104 m. Calculate the strength of one. zero ϫ 104 m radio waves in devices of kilojoules consistent with mole of radio waves. ponder that the bond strength of a carbon–carbon unmarried bond present in natural compounds is 347 kJ/mol. could X rays and/or radio waves be capable to disrupt natural compounds via breaking carbon–carbon unmarried bonds? forty seven. The paintings functionality of a component is the power required to take away an electron from the skin of the forged point. The paintings fifty three. A particle has a speed that's ninety. % of the rate of sunshine. If the wavelength of the particle is 1. five ϫ 10Ϫ15 m, what's the mass of the particle? fifty four. Calculate the velocities of electrons with de Broglie wavelengths of one. zero ϫ 102 nm and 1. zero nm. Hydrogen Atom: The Bohr version fifty five. Calculate the wavelength of sunshine emitted while all the following transitions take place within the hydrogen atom. What form of electromagnetic radiation is emitted in every one transition? a. n five three S n five 2 b. n five four S n five 2 c. n five 2 S n five 1 fifty six. Calculate the wavelength of sunshine emitted whilst all of the following transitions ensue within the hydrogen atom. What kind of electromagnetic radiation is emitted in every one transition? a. n five four S n five three b. n five five S n five four c. n five five S n five three fifty seven. utilizing vertical strains, point out the transitions from workout fifty five on an energy-level diagram for the hydrogen atom (see Fig. 2. 9). fifty eight. utilizing vertical traces, point out the transitions from workout fifty six on an energy-level diagram for the hydrogen atom (see Fig. 2. 9). fifty nine. Calculate the longest and shortest wavelengths of sunshine emitted by way of electrons within the hydrogen atom that commence within the n ϭ 6 kingdom after which fall to states with smaller values of n. Copyright 2010 Cengage studying. All Rights Reserved. will not be copied, scanned, or duplicated, in complete or partly. as a result of digital rights, a few 3rd celebration content material should be suppressed from the publication and/or eChapter(s). Editorial overview has deemed that any suppressed content material doesn't materially impact the final studying adventure. Cengage studying reserves the correct to take away extra content material at any time if next rights regulations require it. 65322_ch02_0057-0110. indd 103 10/26/10 7:12 AM Chapter Atomic constitution and Periodicity 60. suppose hydrogen atom’s electron has been excited to the n ϭ five point. what percentage various wavelengths of sunshine will be emitted as this excited atom loses power? sixty one. Does a photon of obvious mild (␭ < four hundred to seven hundred nm) have adequate strength to excite an electron in a hydrogen atom from the n ϭ 1 to the n ϭ five strength country? From the n ϭ 2 to the n ϭ 6 strength nation? sixty two. An electron is happy from the n ϭ 1 floor country to the n ϭ three country in a hydrogen atom.

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