does sugar dissolve in ethanolWhich of the following is least likely to dissolve in the polar solvent water? oil salt sugar ethanol?

Which of the following is least likely to dissolve in the polar solvent water?

oil

salt

sugar

ethanol

Question 2 (Multiple Choice Worth 3 points)

If 3.2 moles of NaCl are dissolved in enough water to make a 0.98-liter solution, what is the molarity of the solution?

0.31 M NaCl

0.77 M NaCl

1.3 M NaCl

3.3 M NaCl

Question 3 (Essay Worth 4 points)

What would be the resulting molarity of a solution made by dissolving 31.3 grams of Ca(OH)2 in enough water to make a 1050-milliliter solution? Show all of the work needed to solve this problem.


Question 4 (Multiple Choice Worth 3 points)

Which of the following changes will decrease the total amount of ga搜刮引擎劣化us solute able to be dissolved in a litdoes sugar dissolve in ethanoler of liquid water?

increasing temperature

increasing pressure

decreasing surface area

decreasing temperature

Question 5 (Multiple Choice Worth 3 points)

If 25.8 grams of BaO dissolve in enough water to make a 212-gram solution, what is the percent by mass of the solution?

8.22% BaO

8.92% BaO

10.8% BaO

12.2% BaO

Question 6 (Multiple Choice Worth 3 points)

If 35.8 grams of LiCl are dissolved in 184 grams of water, what is the concentration of the solution in percent by mass?

5.14% LiCl

16.3% LiCl

19.5% LiCl

24.2% LiCl

Question 7 (Essay Worth 3 points)

Describe, in your own words, why sugar will dissolve faster in hot tea than it will in cold tea. Be specific in your explanation.


Question 8 (Multdoes sugar dissolve in ethanoliple Choice Worth 3 points)

Why is the ionic compound NaCl (table salt) able to dissolve in a glass of the molecular compound water (H2O)?

Both the solute and solvent contain ionic bonding, which makes them compatible.

The solute and solvent react together to form a new compound.

Ions from the solute have a strong attraction to the polar solvent molecules.

It does not require much energy to break the covalent bonds in the water molecules
First question answer is oil.

Last question answer is this:

"Ions from the solute have a strong attraction to the polar solvent molecules."