Answer:
<h2>0.96 g/mL</h2>Explanation:
The density of a substance can be found by using the formula
From the question we have
mass = 418.23 g
volume = 436.2 ml
We have the final answer as
<h3>0.96 g/mL</h3>Hope this helps you
Can someone help me pleasee
1 answer:
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Answer:
was the concentration of the original solution.
Explanation:
(Dilution)
where,
are molarity and volume of non diluted sample.
are molarity and volume of diluted sample.
(1μL=0.001 mL)
Substituting all values :
was the concentration of the original solution.
Explanation:
Using Beer-Lambert's law :
Formula used :
where,
A = absorbance of solution
c = concentration of solution
l = length of the cell
= molar absorptivity of this solution
According to question:
A = (C) : absorbance measured by the spectrometer
c = (B) : concentration, in mol/L, of the stock solution from which the sample was made
l = (A): pathlength of light through the cell
ε = (D) : molar absorptivity, a constant unique to that substance at that wavelength