IT will be easy to know how chemical reactions occur
It will helps to know the fundamental particles of an atom
Answer:
a) Change in temperature of the freezing point is +5.35C.
b) The molality of the hydrocarbon is 0.265 M
c) Mass of cyclohexane is 0.014354 g
d) The number of moles of hydrocarbon in the solution is
e) Molar mas of hydrocarbon is .
Explanation:
a)
Therefore, Change in temperature of the freezing point is +5.35C.
b)
Therefore, The molality of the hydrocarbon is 0.265 M.
c)
Therefore, Mass of cyclohexane is 0.014354 g
d)
Therefore, The number of moles of hydrocarbon in the solution is
e)
Therefore, Molar mas of hydrocarbon is .
Its very easy, all we need is the following formula
c= λ x ν
c= speed of light
λ= wavelength
ν= frequency
we can rearrange the formula to solve for the unknown asked.
ν= c/λ
v= (2.998 x 10^8)/ (3.55 x 10^-8)= 8.45 x 10^15
The correct answer is D<span>) remains hazardous for a long time. Nuclear waste stays radioactive for many centuries.
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This is generally buried underground, so it does not cause significant air pollution, greenhouse effect, or acid rain<span>. These three are mostly caused by particulate matter or greenhouse gases that are emitted into the atmosphere
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