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vredina [299]
3 years ago
8

Please ignore my answers because they are wrong.

Chemistry
1 answer:
earnstyle [38]3 years ago
4 0

Answer:

The wavelength of the radio wave is 3.003 m.

The energy of the radio wave is 6.6194\times 10^{-26} J.

Explanation:

Frequency of the radio waves, ν = 99.9 MHz = 99.9\times 10^6 Hz

Wavelength and frequency are related to each other by realtion:

\lambda =\frac{c}{\nu }

\lambda = Wavelength of the wave

c = speed of the light

ν = Frequency of the wave

\lambda =\frac{3\times 10^8 m/s}{99.9\times 10^6 s^{-1}}=3.003 m

The wavelength of the radio wave is 3.003 m.

The energy of the electromagnetic wave is given by Planck's equation:

E=h\times \nu

h = Planck's constant = 6.626\times 10^{-34} Js

The energy of the radio wave with 99.9 MHz frequency will be:

E=6.626\times 10^{-34} Js\times 99.9\times 10^6 s^{-1}

E = 6.6194\times 10^{-26} J

The energy of the radio wave is 6.6194\times 10^{-26} J.

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Answer:

Here:

Explanation:

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4 years ago
Calculate the percent composition of chlorine in methyl trichloride, CHCl3.
vovikov84 [41]

Answer:

Chlorine --> 89%

Explanation:

Step 1) Add each element's amu up to get the total mass of the compound.

12.011+1.008+3(35.453) = 119.378.

Step 2) Divide the total mass of chlorine by the total mass of the compound.

3(35.453) = 106.359

106.359/119.378 = 0.8909430548.

Step 3) Now multiply by 100 to get the percentage.

0.8909430548*100 = 89.09430548%

Step 4) Estimate and submit your answer

89.09430548% estimates to 89%

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