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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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How much water should be added to 70ml of 60 percent acid solution to dilute it to a 50 percent acid solution?
mestny [16]

Answer:

14 ml of water

Explanation:

To find the volume you need to dilute the concentration of a solution, you should use the formula C1 x V1 = C2 x V2 in which:

C1 = initial concentration ( in this case 60 %)

V1 = initial volume ( in this case 70 ml)

C2 = Final concentration ( you want to dilute until 50 %)

V2 = final volume ( the variable you want to search)

So you need to:

1.- Isolate the variable you want to find: V2 = (C1 x V1) / C2

2.- Substitute data: V2 = (60% x 70 ml) /50 %

3.- You do the math, in this case is 84 ml.

4.- Remember that you have a initial volume of 70 ml, so the difference (84 ml - 70 ml = 14 ml) is the volume you need to add to dilute your solution.

7 0
3 years ago
During respiration, energy is retrieved from the high-energy bonds found in certain organic molecules. Which of the following, i
babunello [35]

Answer:

(A.) CO2, H2O

Explanation:

The chemical equation for respiration process is:

C_{6}H_{12} O_{6} + 6O_{2} → 6CO_{2} + 6H_{2} O + ATP↑

Energy is released during the biochemical process in the organism's cells in form of ATP. Byproducts of the reaction are carbon dioxide and water molecules.

Let me know if you require any further assistance.

4 0
3 years ago
If I have 72 liters of argon gas held at a pressure of 3.4 atm and a temperature of 225k how many grams of argon do I have
andrezito [222]

Answer:

516.77 grams of Argon gas is present

Explanation:

Using the gas formula

PV = nRT

number of moles (n) = mass / molar weight or mass

P = pressure = 3.4 atm

V = volume = 72 L

R = gas constant = 0.082 L atm mol^-1 K^-1

T = temperature = 225 K

MM = molar mass of Ar = 38.984 g/mol

PV = mRT/ MM

m = PV MM / RT

m = 3.4 * 72 * 38.948 / 0.082 * 225

m =  9534.4704 / 18.45

m = 516.77 grams

the mass of Ar gas you have is 516.77 grams.

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3 years ago
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s344n2d4d5 [400]

Answer:

all work

Explanation:

6 0
3 years ago
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Calculate the percentage by mass of chlorine in Cobalt (II) chloride (cocl2)​
Likurg_2 [28]

Explanation:

Divide the mass of chlorine by the molar mass of cobalt chloride, then multiply by 100.

Molar Mass of Cobalt Chloride.

Mass of Chlorine in Cobalt Chloride.

Percent Composition of Chlorine.

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