Molarity PHET (Quiz)

Which of these solutions look like they are saturated?

• A

• B

• C

• none of these

• two of these

Tags

NGSS.MS-PS1-2

What do you think the solubility of this solution is?

• 0.7 moles

• 1.4 M

• 2.0M/moles

• Can’t be determined

Which could help you identify the independent variables?

• Move a slider and see if another measurement changes

• Assume that there is only one independent variable

• Move a slider and anything that changes is an independent variable

• More than one of these

Given this graph, what can you say about the experiment?

• Amount of solute was the independent variable

• Amount of solution was the independent variable

• Concentration was the independent variable

• More than one of these

Tags

NGSS.HS-PS1-5

Given this graph, what can you say about the relationship between the amount of solute and concentration?

• The amount and concentration are directly related

• Some chemicals are not as soluble as others

• The relationship is the same for the chemicals used

• More than one of these

Tags

NGSS.HS-PS1-5

What was held constant in the experiment that gives this graph? (Assume good experimental design)

• The amount of solute

• The solution volume

• The concentration

• More than one of these

Tags

NGSS.HS-PS1-5

Given this graph, what can you say about the relationship between amount of solution and concentration?

• The amount and concentration are directly related

• Some chemicals are not as soluble as others

• The relationship is the same for the chemicals used

• More than one of these

Tags

NGSS.HS-PS1-5

Given this graph, what would you predict for the concentration at 0.8 moles of solute for each chemical?

• Red (♦) is 1.6M and Blue (■) is 1.4M

• They are both 0.4M

• They are both 1.6M

Tags

NGSS.HS-PS1-5

Given this graph, what would you predict the solubility of the red chemical?

• Red (♦) solubility is 1.6M

• Red (♦) solubility is 1.4M

• Red (♦) solubility is 0.8M

• Cannot be determined by this experiment

Tags

NGSS.HS-PS1-2