A Qualitative Look at Equilibrium and Equilibrium Shifts 1. The solid cobalt (II) chloride crystals were dark purple, and the formula from the label of the stock bottle was:
c. The solution color was clear and slightly purple.
d. The solution was clear, purplish-pink with blue (teal) around the calcium chloride (solid).
e. The solution turned pink, opaque and foggy.
5. When the solution was heated, it turned dark blue. When it was cooled in the ice bath, it went back to its original color. It may have changed further if left longer in the ice bath but the experiment was just to see if the color change was reversible and it was.
1. The complex formula for cobalt (II) chloride from the stock bottle was:
2. The name for the type of compound that contains water molecules is a hydrate.
The cobalt chloride ionized in solution
The addition of excess chloride ions drove the reaction forward because more chloride ions were available to react with the cobalt
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= 1971
= 8 (250 words per page)
