Colligative Properties Zoom Meeting

Which of the following compounds have a van’t Hoff factor of 3 or higher?

• CO

• BaCl₂

• Na₃PO₄

• NH₄OH

• NH₃

Covalent/molecular species always have a van’t Hoff factor of _____.

The units for molality are _______ of _____ per ____ of ______. (separate four answers with commas)

What is added to the ice bath to help lower the temperature?

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Based on the following equation, $\Delta T_{f_{ }}=k_f\times m\times i$ , when the moles of solute is increased the freezing point of the solution will __________.

Which of the following is true regarding waste management in this lab?

• The waste from both Part B and Part C will go down the sink.

• The waste from both Part B and Part C will go in the liquid waste container.

• The waste from Part B will go in the liquid waste container, the waste from Part C will go down the sink.

• The waste from Part B will go down the sink, the waste from Part C will go in the liquid waste container.

Have you been able to locate and read the tips for writing a lab report handout on LabFlow?

• Yes, I found and read it

• Yes I found it, no I haven’t read it

• No to both

• I haven’t tried looking

You have written at least one introduction already and you will need to write one again for this lab. Do you have any questions about how it needs to be formatted, what to include, feedback you have receive on graded intros?