Physics, 19.07.2019 03:00 rose3358

Asolution is measured to have a ph of 2.3. what is most likely also true about the solution? a. it has a low hydroxide ion concentration b. it has a low hydronium ion concentration c. it is neutral d. it has no h20 molecules

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Answer from: marissasabino111

A. It has a low hydronium ion concentration

Answer from: o10889084

Option (a) is the correct answer.

Explanation:

A solution with pH value more than 7 will be basic in nature and hence it will have more number of hydroxide ions.

Whereas a solution with pH value less than 7 will be acidic in nature and hence, it will have more number of hydrogen or hydronium ions.

On the other hand, a solution with pH equal to 7 will be neutral in nature as it will neither have hydrogen ions or hydroxide ions.

Thus, we can conclude that a solution is measured to have a pH of 2.3 would most likely be has a low hydroxide ion concentration.

Answer from: Quest

answer: the correct answer id option(d).

explanation:

snell's law refraction:

$\frac{n_2}{n_1}=\frac{sin \theta_1}{sin\theta_2}$

the angle of refraction = $\theta_2=38 ^o$

the angle of incidence = $\theta_1=?$

refractive index of air = $n_1$ = 1

refractive index of glycerol $n_2$ = 1.47

$\frac{1.47}{1}=\frac{sin\theta_1}{sin 38^o}, (sin38^o=0.61)$

$sin\theta_2=0.8967$

$\theta_2=24.2^o, (sin^{-1}0.8967=63.72^o)$

from the given options, the most closest answer to 63.72° is 65° of option (d).

Answer from: Quest

scattering of light by tiny particles in air to produce the colors we see on sky, is dependent on the following factors:

(i) wavelength of light

(ii) size of the scattering particle

(iii) distance traveled by light through the atmosphere.

according to rayleigh's law of scattering, the amount of scattering is inversely proportional to the fourth power of its wavelength. shorter the wavelength, greater is its scattering. hence violet/blue light is scattered more than red.

sun's light is a composite light ( visible light) with wavelengths in the range 400 nm (violet) to 700 nm (red). as sunlight passes through our atmosphere, the molecules of air scatter light according to their wavelengths. during sunrise and sunset, the sun's position is below the horizon. hence light from the sun travels a greater distance in the atmosphere when compared to its position a noon.

as sunlight enters the earth's atmosphere, blue light is scattered away and at the end of its journey in the sky, only red and orange wavelengths remain in the beam.

hence at sunrise and sunset, the sky appears reddish orange.

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Asolution is measured to have a ph of 2.3. what is most likely also true about the solution? a. it...

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