Dissolving
What's the concentration when 5 moles of solute are dissolved in 750 mL of solution?
6.67 M
oil and water do not mix. Why?
Water is polar oil is nonpolar
This is the movement of water across a semipermeable membrane.
What is osmosis?
When more energy is absorbed to break a bond than it takes to form when it dissolves
What is a endothermic reaction
What mass of NaCl is needed to make 50 mL of a 0.25 M solution?
0.73 grams
Crushing a solid solute increases this, allowing it to dissolve faster.
What is surface area
Water moves from an area of ______ solute concentration to ______ solute concentration.
Low to High
This type of solution forms when two metals are melted together and cooled.
what is an alloy?
When a solution contains more solute than it theoretically should hold
What is supersaturated
200 mL of water is added to 500 mL of 0.60 M solution. What is the new concentration?
0.43 M
mixes in all proportions
What is miscible?
Adding salt to water makes it freeze at a lower temperature. This is called:
What is freezing point depression?
Is NaOH an electrolyte or a non-electrolyte?
What is an electrolyte
When water is the solvent, solvation is more specifically called this.
what is hydration?
A solution that causes a cell to shrink is described as:
What is hypertonic?
A student wants to dissolve sugar as quickly as possible. They crush it, stir it, and heat the water. Each of these increases dissolving rate by affecting this at the particle level why?
What is increasing kinetic energy? Or leading to more collisions? Or explaining it in each case.
At 60°C, 110 g of a salt dissolves in 100 g of water. If the solution is cooled to 30°C and only 40 g can remain dissolved, how many grams of solute will precipitate out?
What is 70 grams precipitates out?
What is the molarity of a solution made by dissolving 23.4 grams of NaCl in enough water to make 500.0 mL of solution?
What is 0.80 M?
During solvation of NaCl in water, this part of the water molecule is attracted to Na⁺ ions.
What is the oxygen (negative) end?
A student claims that 1.0 m glucose and 1.0 m NaCl will lower the freezing point of water by the same amount because their concentrations are equal. The student is incorrect because colligative properties depend on this.
What is the number of particles involveD?