3. A 14.8 M NH3 solution is needed to prepare a solution containing 200.0 mL of 3.4 M NH3. How manymL of the concentrated solution are necessary to make this solution?4. What volume (in mL) of a 0.360 M Ba(OH)2 solution is needed to neutralize 25.0 ml of a 0.296 Msolution of HNO3?5. An electron in a hydrogen atom makes a transition from an n = 2 orbital to an n =5 orbital.а.For this electron transition, is energy being absorbed or released? Circle one.ABSORBEDRELEASEDb. Calculate the energy difference for this transition and the wavelength (in nanometers) of thephoton involved in this transition.

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mL of the concentrated solution are

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter4: Types Of Chemical Reactions And Solution Stoichiometry

Section: Chapter Questions

Problem 47E

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Question

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3. A 14.8 M NH3 solution is needed to prepare a solution containing 200.0 mL of 3.4 M NH3. How many
mL of the concentrated solution are necessary to make this solution?
4. What volume (in mL) of a 0.360 M Ba(OH)2 solution is needed to neutralize 25.0 ml of a 0.296 M
solution of HNO3?
5. An electron in a hydrogen atom makes a transition from an n = 2 orbital to an n =
5 orbital.
а.
For this electron transition, is energy being absorbed or released? Circle one.
ABSORBED
RELEASED
b. Calculate the energy difference for this transition and the wavelength (in nanometers) of the
photon involved in this transition.

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