The moles of potassium that you would need to prepare 1200 g of 5% potassium sulfate solution is 1.538 moles
calculation
calculate the mass potassium using the below formula
%M/M = mass of the solute(potassium)/mass of the solvent (potassium sulfate solution)
let the mass of potassium be represented by Y
then convert % into fraction = 5/100
5/100 = Y/1200
cross multiplication
100y = 6000
divide both side by 100
Y= 60 g
moles of potassium =mass/molar mass
= 60/39=1.538
Remember that the formula to calculare KA is the following
<span>Ka = [H+ ion]*[conj. base] / [acid]
</span>Now that you have the data you can do as the following:
<span>Ka = [H+]*[base] / [acid] </span>
<span>Ka = [x]*[x] / [acid - x] </span>
<span>Ka = x^2 / [acid - x]
</span>then we go
<span>Ka = [.032]^2 / [.220 - .032]
</span>Ka = <span> 5.4 x 10^-3.
Or what is the same
Ka = </span><span>.0054
</span>
Answer:
The product of reduction of glucose is sorbitol
The side effects caused by too much sorbitol consumption include: Diarrhea, Nausea, stomach discomfort
Explanation:
Please find attached the reaction of glucose with NADPH to produce sorbitol
Answer:
d.) Microwave photons cause the molecules to increase their rotational energy states, whereas infrared photons cause electrons in the molecules to increase their electronic energy states.
Explanation:
Microwave: transitions in the molecular rotational levels
Infrared: transitions in molecular vibrational levels
UV/Visible: transitions in electronic energy levels.
Answer:
a) Solubility diminishes.
b) Solubility remains constant.
c) Solubility increases.
d) Solubility increases.
Explanation:
Hello,
a) In this case, we've got to take into account that the solubility of a gas into a liquid increases as the pressure does it (because the molecules are forced to gather with the liquid's particles) and the other way around, in such a way, as the pressure is decreased, the solubility is decreased as well.
b) Well, the outer space is related with the atmospheric pressure as long as the column of air is what is exerting the pressure, thus, as this pressure is quantified as 1 atm, there won't be any appreciable change in the solubility as the pressure remains the same.
c) Now, as the pressure is increased, the solubility is increased in a very similar way that in the a) part.
d) Submerging the solution 40m underwater means that the fluid's column above the solution is increased, thus, the pressure is increased, so the solubility is increased as well.
Best regards.
