Answer:
I think it is B.
Explanation:
Hope my answer has helped you!
Answer:
D.When the boiling points of the components are different
Explanation:
I believe the formal name for this procedure is actually distillation.
Answer:
0.29 mol/L
Explanation:
Its density is 1.029 g/ml so in a liter (1000 mL) there is 1029 g of solution, but only 5% is dextrose.
0.05x1029=51.45
So in a liter of D5W solution there is 51.45 g of dextrose.
Dextrose molar mass iss 180.156 g/mol, so in 51.45 g of dextrose there is
51.45/180.156=0.29 mol
In one liter of solution there is 0.29 mol of dextrose, so the molarity of such solution is 0.29 mol/L.
Answer:
![\frac{1}{24}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B24%7D)
Explanation:
Given:
For a school event, 1/6 of the athletic field is reserved for the fifth -grade classes and the reserved part of the field is divided equally among the 4 fifth grade classes in the school.
To find: fraction of the whole athletic field reserved for each fifth class
Solution:
Fraction of the whole athletic field reserved for four fifth classes = ![\frac{1}{6}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B6%7D)
So, fraction of the whole athletic field reserved for each fifth class = ![\frac{1}{4}(\frac{1}{6})=\frac{1}{24}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B4%7D%28%5Cfrac%7B1%7D%7B6%7D%29%3D%5Cfrac%7B1%7D%7B24%7D)