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Harlamova29_29 [7]
3 years ago
12

Q3.What did you observe about the wavelengths and frequencies of the different colors of light?

Chemistry
1 answer:
Natalija [7]3 years ago
6 0

Answer:

Explanation:

Q3.What did you observe about the wavelengths and frequencies of the different colors of light?

Q4. Do the frequencies of colors of light increase from red to violet?

Q5. What did you observe about the corresponding energies from red to violet?

wavelength times frequency =c=the speed of light

the higher the frequency, the shorter the wavelength

the different colors of visible  light are our good friend ROY G BIV

RED  ORANGE  YELLOW   GREEN   BLUE   INDIGO   VIOLET

As we go from red to violet, the wavelength decreases and the energy increases because the wave is vibrating at a higher number of vibrations per secomd. This is what "frequency' means, how many vibrations are there per second, how FREQUENT are thee.

the higher the frequency the more energy because the wave is vibrating faster.

the equation that relates this is Energy = h times frequency, where h is

Planck's constant = 6.262 x 10^-27 ERG-SEC

the frequency of vibration and therefor the energy of visible electromagnetic radiation (light) increase as we go across

ROY G BIV

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en un recipiente se tiene 800 g de una solución al 35% en masa de ácido sulfuroso, de la cual se evapora 80ml de agua. ¿cuál es
Alinara [238K]

The mass percent of sulfurous acid in the new solution : 38.9%

<h3>Further explanation</h3>

<em>In a container you have 800 g of a 35% by mass solution of sulfurous acid, from which 80 ml of water evaporates. What is the mass percent of sulfurous acid in the new solution? data: density of water is 1g / ml.</em>

<em />

solution 1

composition :

  • 35% acid :

\tt 0.35\times 800~g=280~g

  • water :

\tt 800-280=520~g

solution 2(new solution)

composition :

  • water

\tt 520-(80~ml\times 1~g/ml)=440~g

  • Total mass of new solution after water evaporated

\tt 280(acid)+440(water)=720~g

  • %mass of acid in a new solution

\tt \dfrac{280}{720}\times 100\%=38.9\%

5 0
3 years ago
I dont understand and this question hard well for me
Murrr4er [49]
A
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4 0
2 years ago
Read 2 more answers
What do you make when you dissolve sugar in water?
Rasek [7]

Answer:

Answer is c.

Explanation:

when you mix sugar with water,the sugar dissolves to make a transparent solution.

I hope it's helpful!

7 0
3 years ago
You have prepared a 1.0 M solution of CaCl2 in the laboratory.
Ratling [72]
It’s C I think and I’m not sure
6 0
3 years ago
a 10.99g sample of NaBr contains 22.34% Na by mass. Considering the law of constant composition (define proportions), how many g
leonid [27]

Given :

A 10.99 g sample of NaBr contains 22.34% Na by mass.

To Find :

How many grams of sodium does a 9.77g sample of sodium bromine contain.

Solution :

By law of constant composition , in any given chemical compound, the elements always combine in the same proportion with each other.

Therefore , percentage of Na by mass in NaBr will be same for every amount .

Percentage of Na in 9.77 g NaBr is 22.34 % too .

Gram of Na = 9.77\times \dfrac{22.34}{100}=2.18\ g .

Hence , this is the required solution .

7 0
3 years ago
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