Since the 90 degree angle is on a straight line, the one attached to it is also going to be 90 degrees and in one triangle the Desiree’s must add up to 180 so we are given 90 and 23 on one side so the other angle is going to be 67 which is attached to the other angle and therefore when u do 180-90-67 for the unknown x triangle u should get 23
Answer:
(a) 0.0885 M
(b) 1.25
Step-by-step explanation:
Solute S has a partition coefficient of 5.9 between water (phase 1) and hexane (phase 2).
i.e Partition coefficient Kd = [S(hexane]/[S(water) = 5.9
to calculate the concentration of S in hexane; we have;
[S(hexane]/0.015 = 5.9
[S(hexane)] = 5.9 x 0.015
= 0.0885 M
Question B say ,
If the volume of water is 85.0 mL
and the volume of hexane is 18.0 mL,
to find the quotient (mol S in hexane/mol S in water), we will multiply the
Partition coefficient Kd with volume of hexane divided by volume of water
i.e Partition coefficient Kd = (moles/volume of S in hexane)/(moles/volume of S in water)
∴
(moles of S in hexane/moles of S in water) = Kd x (volume of hexane/volume of water)
= 5.9 x 18.0/85.0
= 1.25
this is your answers......
