Multi choices

Transition b will result in light with the longest wavelength. Of the choices the n = 4 and n = 3 energy levels are the closest together, therefore the transition will have the smallest ΔE. Since energy and wavelength are inversely related, the resulting light will have the longest wavelength

Which of the transition will result in light with the longest wavelength? Why? a. n=4→n=1 b. n​=4→n=3 c. n=5→n=1 d. n=3→n=2

(b) is incorrect because l cannot have a value higher than 0. (c)is incorrect because ms can only be 1⁄2​or 1⁄2

Which of the following sets of quantum numbers is incorrect? Explain. a. n=1,l=0,ml=0,ms=+​1⁄2 b. n=1,l=1,ml=0,ms=+​1⁄2 c. n=3,l=2,ml=2,ms=+1 d. n=2,l=1,ml=0,ms=+​1⁄2 e. n=4,l=1,ml=1,ms=​1⁄2

(a) The lower wave has a longer wavelength (greater distance between peaks). The longer the wavelength, the lower the frequency (v = c/λ). Thus, the lower wave has the lower frequency, and the upper wave has the higher frequency.
(b) The electromagnetic spectrum (Figure 6.4) indicates that infrared radiation has a longer wavelength than visible light. Thus, the lower wave would be the infrared radiation.

(a) Which wave has the higher frequency? (b) If one wave represents visible light and the other represents infrared radiation, which wave is which? (a) The lower wave has a longer wavelength (greater distance between peaks). The longer the wavelength, the lower the frequency (v = c/λ). Thus, the lower wave has the lower frequency, and the upper wave has the higher frequency. (b) The electromagnetic spectrum (Figure 6.4) indicates that infrared radiation has a longer wavelength than visible light. Thus, the lower wave would be the infrared radiation.

The wavelength increases as frequency decreases
(λ = c/v)

What is the relationship between wavelength and frequency?!

92, 143, 92 ( no charge )

(final) How many protons, neutrons, and electrons are present in U-235?

C.

mL- mol Bacl 2 – mol cl
0.500 M

(Final) Which solution contains the largest number of moles of chloride.. A. 10.00 mL of 0.500 M BaCl2 B. 5.00 mL of 1.000 M NaCl C. 10.00 mL of 0.500 M FeCl3 D. 25.00 mL of 0.400 M KCl E. 30.00 mL of 0.100 M CaCl2

-224.9 kJ

gH2 –> mol H2–> kj

(final ) 2 H2 (g) + O2 (g) → 2 H2O (g) ∆Hrxn = -483.6 kJ (Final )Calculate the heat (in kJ) associated with the complete reaction of 1.875 g of hydrogen gas.

7.58 atm
(Pv=nrt)

(final)A 2.00 L tank at 298 K contains 0.25 mol Ar and 0.62 mol He. What is the partial pressure, in atm, of Helium?

D

(final )Which of the following has the highest mass? A. 3.0 mol Al(NO3)3 B. 3.0 mol SrBr2 C. 3.0 mol N2O D. 3.0 mol P4O10 E. 3.0 mol LiCl

C

(final) Which of the following compounds can be added to an ammonium chloride solution to form a precipitate? A. Potassium phosphate B. Calcium chloride C. Silver nitrate D. Cobalt(III) sulfate

+4

(Final) What is the charge on Ti in Ti3(PO4)4?

A

( the big difference, the shortes wavelenght)

(final) Which of the following transitions (in a hydrogen atom) represent emission of the shortest wavelength photon? n = 3 to n = 1 n = 4 to n= 2 n = 5 to n = 4 n = 6 to n = 5