Answer:
<em>The wavelength of water = 571.43 nm</em>
Explanation:
Refractive index of water = wave length of light in air/wave length of light in water
R.d = λ₁/λ₂.................. Equation 1
making λ₂ the subject of equation 1
λ₂ = λ₁/R.d...................... Equation 2
R.d = refractive index of water , λ₁ = wave length of light in air, λ₂ = wave length of light in water
<em>Given: R.d = 1.33, λ₁ = 760nm</em>
<em>Substituting these values into equation 2</em>
λ₂ = 760/1.33
<em>λ₂ = 571.43 nm</em>
<em>Therefore the wavelength of water = 571.43 nm</em>
Answer:
8000 L/ mol cm is the value of the molar absorptivity coefficient.
Explanation:
The slope of the absorbance- concentration graph is equal to the product of path length and molar absorptivity coefficient.
= Rate of change of absorbance with respect to concentration
= molar absorptivity coefficient
l = Path-length
Given the slope of graph of absorbance vs procaine hydrochloride concentration.
y = 240000 x (linear equation)
Path length of cuvette = 3 cm
The units of 
8000 L/ mol cm is the value of the molar absorptivity coefficient.
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