Empirical Formula Experiment - copper chloride hydrate

The empirical formula of a copper chloride hydrate is determined. First the water molecules are removed through heating and the crystals change color from blue to brown. Next the copper is removed by a displacement reaction with aluminum and the copper metal is separated by filtration, washing and drying.

[@haydenbeamish1589]

Great Video Scott, i was enthralled throughout its entirity

[@ahmaeycoelho8113]

I agree Beamo03, this piqued my interest for the entire duration of the media

[@jacobmclain8132]

NO FUME HOOD? This guy is a mad man!

[@nuddin99]

I been looking for something like this. Thanks man.

[@ellalindgren9650]

thank u so much this helped a lot!!! struggled with lab tests

[@jetwing1018]

GOOD JOB BROSEF

[@shivash9552]

So helpful thank you so much

[@darlenerivera6996]

If the aluminum is removed before the solution became colorless, how the experimental moles of copper be affected?

[@lailynromano61]

What are the products formed after the chemical reaction of copper Chloride hydrate and aluminum metal?

[@taehoonryu6717]

what is the accepted empirical formula for Hydrated Copper Chloride? I would like to compare it with my formula

[@mikhailwillis7625]

If after adding the aluminum and allow it to sit in the solution for about 30mins and the solution doesn’t become clear but a sort of light brown murky color what could that be a sign of?

[@yuliaperaltagarcia6963]

Hello, one question, what is the empirical formula, I got Cu3 Cl4 5H20, but it's wrong, could you help me please ..

[@prasiddhathapa4846]

How to find the mass og H2O?(water)

[@makenalikewise7438]

fucked up my lab numbers so had to use yours

[@altaccount8679]

same

[@samanthasmith4570]

how do you find the mass of the chlorine?

[@fluffandstuff6089]

mass of dehydrated sample - mass of copper

[@dereksavastano]

@@fluffandstuff6089 Life Saver

[@alyssalynursal3869]

Why is it important to dehydrate the copper chloride hydrate if we just rehydrate afterward (right before adding aluminum). Is it because the water in the hydrate is trapped in the crystals. Would that prevent the Copper Chloride hydrate from dissolving into ions?

[@APphyzicks]

It's purely to know how much of the mass of the compound is water, otherwise determining the amount of Cl wouldn't be possible since it is the remainder after water and Cu mass have been subtracted.

[@alyssalynursal3869]

Scott Milam thank you for explaining even though the video is 2 years old! I understand it now. Without complete dehydration I would not be able to determine the empirical formula accurately. Thanks again.

[@APphyzicks]

@@alyssalynursal3869 you're welcome!

[@DeaconBradleyyy]

wow