<u>Answer:</u> The mass percent of water in the hydrated salt is 43.6 %
<u>Explanation:</u>
To calculate the mass for given number of moles, we use the equation:
Moles of water = 8 moles
Molar mass of water = 18 g/mol
Putting values in above equation, we get:
We are given:
Mass of anhydrous salt = 186.181 g
To calculate the mass percentage of water in the hydrated salt, we use the equation:
Mass of hydrated salt = [186.181 + 144]g = 330.181g
Mass of water = 144 g
Putting values in above equation, we get:
Hence, the mass percent of water in the hydrated salt is 43.6 %
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
Answer:
it is simple true and thanks for point
