Answer:
What is the question more specific and then I will answer it
Explanation:
The answer is to this question is
60 m/s.
Answer:
The concentration of the sample is 3.564x10⁻³M.
Explanation:
Using Lambert-Beer law, absorbance of a sample is directely proportional to its concentration.
The general graph of the absorbance of the standards with different concentrations is:
Y = 75.9X + 0.0045
R² = 0.9946
<em>Where Y is the absorbance of the sample and X its concentration in mole/L.</em>
If a solution has an absorbance of 0.275:
0.275 = 75.9X + 0.0045
0.2705 = 75.9X
3.564x10⁻³M = X → The concentration of the sample.
Answer:
equal to the number of neutrons
Answer: The vapor pressure of the solution at is 460.63 mmHg
Explanation:
As the relative lowering of vapor pressure is directly proportional to the amount of dissolved solute.
The formula for relative lowering of vapor pressure will be,
where,
= relative lowering in vapor pressure
i = Van'T Hoff factor = 1 (for non electrolytes)
= mole fraction of solute =
Given : 11.79 g of chlorophyll is present in 153.2 g of diethyl ether
moles of solute (chlorophyll) =
moles of solvent (diethyl ether) =
Total moles = moles of solute + moles of solvent =0.01319 + 2.067 = 2.080
= mole fraction of solute =
Thus the vapor pressure of the solution at is 460.63 mmHg