3/18 Mik of magnesia demo

Friday  3/18: Milk of magnesia demo and intro to thermo​chemistry

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Bellwork

On GC

Milk of magnesia demo

What is Milk of magnesia?​

• each group will receive a flask with water and universal indicator

• observe the initial color and clarity of the solution

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Multiple Choice

Is it a solution (homogeneous mixture)?

• Yes

• No

Milk of magnesia demo

• now I will give you milk of magnesia

• shake the milk of magnesia well (make sure the cap is on)

• add one dropper to flask and swirl

• observe new color and clarity of the solution

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Multiple Choice

What color is it now?

• red

• blue

• green

• purple

Fill in the Blanks

• add a few drops of vinegar (acetic acid) to the flask and swirl

• observe the colors you see and clarity of the solution

• what do you think is happening?

• A​dd a few more drops of vinegar and observe

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Clean-up!

Place all chemicals on the back table

Empty flask into the sink and rinse lightly

place flask on back table​

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https://edpuzzle.com/assignments/623481fb5e5efe42a3a1844c/students

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