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Komok [63]
3 years ago
8

What is the speed of an electromagnetic wave that has a wavelength of 8.6 x 10-5 m?

Chemistry
1 answer:
Juli2301 [7.4K]3 years ago
6 0

Answer:

The speed of the given electromagnetic wave is  3 x 10⁸ m/s.

Explanation:

Electromagnetic wave is a type of energy that is commonly known as light energy. The speed of light in air is about 3 x 10⁸ meters per second (m/s).

<u>All electromagnetic waves travel at the same speed</u> which is equal to speed of light, approximately  3 x 10⁸ meters per second (m/s) through a vacuum or air.

Therefore, the speed of the given electromagnetic wave is  3 x 10⁸ m/s.

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3 years ago
What is the empirical formula for a compound that is 29.44\% calcium, 23.55% sulfur, and 47.01% oxygen? This compound is a commo
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Answer:

Empirical formula is CaSO₄.

Explanation:

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Percentage of calcium =29.44%

Percentage of sulfur = 23.55%

Percentage of oxygen = 47.01%

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Solution:

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Number of gram atoms of S = 23.55 / 32 = 0.74

Number of gram atoms of O = 47.01 / 16 = 3

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            Ca                      :        S                :         O

           0.74/0.74           :     0.74/0.74      :       3/0.74

               1                     :          1              :          4

Ca : S : O = 1 : 1 : 4

Empirical formula is CaSO₄.

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a compound

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a compound consists of two or more elements combined

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