3 years ago

Help pls :) I am stuck on this chemistry question about percentage yields!

1 answer:

4 0

You just switch them around

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natulia [17]

One is closer to the equator so be must be warmer

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trapecia [35]

Pure silicon is a poor conductor at room temperature because it has 4 valence electrons

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Volgvan

Because the size of atoms increase as you move down the periodic table.

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Nataliya [291]

The second one ......

6 0

3 years ago

max2010maxim [7]

Answer : The wavelength of yellow light produced by a sodium lamp is, $8.98\times 10^{-7}m$

Explanation : Given,

Frequency of radiation = $3.34\times 10^{14}Hz=3.34\times 10^{14}s^{-1}$

conversion used : $Hz=s^{-1}$

Formula used :

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

where,

$\nu$ = frequency of radiation

$\lambda$ = wavelength of radiation

c = speed of light = $3\times 10^8m/s$

Now put all the given values in the above formula, we get:

$3.34\times 10^{14}s^{-1}=\frac{3\times 10^8m/s}{\lambda}$

$\lambda=8.98\times 10^{-7}m$

Therefore, the wavelength of yellow light produced by a sodium lamp is, $8.98\times 10^{-7}m$

3 0

3 years ago