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Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

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BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

The main lines in the emission spectrum of sodium are at wavelengths (nm) of 313.5. 589, 590, 818, and 819. Which one or ones are most responsible for the characteristic yellow color of excited sodium atoms?

Interpretation Introduction

Interpretation: The wavelengths that are responsible for yellow colour of excited sodium have to be identified from the given wavelengths.

Concept introduction:

  • To prepare fireworks, an oxidizer such as perchlorate, nitrate or chlorate is required. While heating sodium salts, it produces intense yellow colour in fireworks.
  • The wavelength of yellow color is between 570nm and 590nm
Explanation

Visible light is in the region between 400nm to 700nm. The wavelength of yellow color is around 570nm and 590nm.

While heating sodium salts, it produces intense yellow colour

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