Which solution is the least concentrated?
O 2 moles of solute dissolved in 4 liters of solution
Argon-40 because it is the isotope with the closest mass to the atomic mass of the element. Making it more stable than the others allowing it to be the most abundant in nature.
The freezing point depression of the solution or pure substance that is added with the solvent is calculated through the equation,
ΔTf = Kfm
where ΔT is the freezing point depression, Kf is the constant for water given to be -1.86°C/m and m is the molality of the solution.
Molality is calculated through the equation,
m = number of moles solute/ kg of solvent
Calculation of molality is shown below.
m = (21.5 g C6H12O6)(1 mol/180 g) / (0.255 kg)
m = 0.468 molal
The freezing point depression is then,
ΔTf = (-1.86°C/m)(0.468 m) = -0.87°C
<em>Answer: -0.87°C</em>
<h3><u>Answer;</u></h3>
Atomic particles
The first step in the two-step process of making a solution is the breakdown of the solute source into <u>atomic particles</u>.
<h3><u>Explanation</u>;</h3>
- Solution is a homogeneous mixture of two or more substances uniformly dispersed throughout a single phase
- <em><u>The liquid component that makes up the largest part of a solution is called the solvent, and the substance that is dissolved is called the solute.</u></em>
- Unsaturated Solution is a solution that contains less solute than a saturated solution does and that is able to dissolve additional solute, while saturated Solution is a solution that cannot dissolve any more solute under the given conditions
Answer:
Average plate height: 67,4μm
Resolution: 3,10
Resolutin with increase N by a factor of 1,5: 3,80
Explanation:
Average plate height is the average between plate height of aspartame and caffeine.
Plate height is:
For aspartame:
H = 75,4 μm
For caffeine:
H = 59,33 μm
Average plate height is:
(59,3μm + 75.4μm)/2= <em>67,4μm</em>
The resolution formula is:
Replacing:
<em>R = 3,10</em>
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As resolution is proportional to the square root of the number of theoretical plates, the increasing of 1,5 in the number of theoretical plates increases the resolution by a factor of √1,5 ≈ 1,22
That means resolution would be:
R 1,5N = 3,10×√1,5= <em>3,80</em>
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I hope it helps!