Solutions...

If 0.002 g of PbCl2 are dissolved in 2000.0g  of water, how many parts per million are dissolved? (Assume density of water is 1 g/mL)

• 10ppm
• 1ppm
• 2ppm
• 20ppm

What is the concentration of a solution made with 5.6 moles of CO2(g) and 2.00 L of water?

• 2.8M
• 2.8%
• 0.357M
• 0.357%

What is the mass in grams of 6.25 mol of copper (II) nitrate?

• 126 g
• 785 g
• 625 g
• 1172 g

Tags

NGSS.HS-PS1-7

Describe a solute.

• part of solution present in largest amount
• gets dissolved
• water
• surrounds and breaks apart

Describe a solvent.

• part of solution present in smallest amount
• part of solution present in largest amount
• water
• gets dissolved

How does a solution become supersaturated?

• dissolve lots of solute in it.
• dissolve a little solute in it. 
• dissolve more solute than you should be able to. 
• dissolve a super amount of solvent in it. 

What is the difference between concentration and saturation?

• concentration is a fixed % and saturation refers to amount of solute dissolved
• concentration refers to amount of solute dissolved and saturation is a fixed %. 

Tags

NGSS.HS-PS1-5

Unit for concentration.  # moles/# Liters

• Solubility
• Molarity
• Toxicity
• Moles

Tags

NGSS.HS-PS1-5

Graph that shows the amount of solute that can be dissolved in 100 g of water at a certain temperature.

• Solubility curve
• Saturation curve
• Concentration curve
• Molarity curve

Solution where more solute can still be dissolved at the given temperature. 

• Saturated
• Unsaturated
• Supersaturated
• Homogeneous solution