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Titrations Essay

931 words - 4 pages

Chemistry Lab (Demo) NameExperiment 11Metal Reactivity: (Single Replacement Reactions)Use the Activity Series of Elements to predict which reactions take place.

Solutions

Metal

Cu(NO3)2 (aq)

Mg(NO3)2 (aq)

Zn(NO3)2 (aq)

AgNO3 (aq)

Copper (Cu)

NA

No Reaction

No Reaction

Reacts

Magnesium (Mg)

Reacts

NA

Reacts

Reacts

Zinc (Zn)

Reacts

No Reaction

NA

Reacts

Silver (Ag)

No Reaction

No Reaction

No Reaction

NA

Questions:Were you able to accurately predict which reactions happened using the Activity Series of Elements?Circle one: Yes NoWhich metal reacted with the most solutions? ________Magnesium___________Which metal reacted with the fewest solutions? ...view middle of the document...

Based on the list, can you tell why the Statue of Liberty was made with copper instead of a cheaper metal like zinc?Copper is less reactive than zinc so it holds up to exposure to nature better.What material that you observed in this activity might have been a better choice for the statue than copper? Why wasn't it chosen?Silver could be used but it is much more expensive than copper.Given your knowledge of relative chemical activity, which one metal on your list is most likely to be found in an uncombined or "free" state in nature? Which metal would be the least likely to be found uncombined with other elements?Most likely found uncombined Silver is likely to be found in an uncombined stateLeast likely found uncombined Magnesium is going to react with most materials
The Activity Series
of Elements

Metals
(More reactive metals replace
less reactive metal cations)
Example:
2Al(s) + 3CuCl2(aq) → 3Cu(s) + 2AlCl3(aq)
Cu(s) + AlCl3(aq) → No Reaction

Nonmetals
(More reactive nonmetals replace
less reactive anions)
Example:
F2(g) + CuCl2(aq) → Cl2(g) + CuF2(aq)
Cl2(g) + CuF2(aq)→ No Reaction

Lithium, Li
Potassium, K
Barium, Ba
Calcium, Ca
Sodium, Na
Magnesium, Mg
Aluminum, Al
Zinc, Zn
Iron, Fe
Nickel, Ni
Tin, Sn
Lead, Pb
Hydrogen, H2
Copper, Cu
Mercury, Hg
Silver, Ag
Platinum, Pt
Gold, Au

Fluorine, F2
Chlorine, Cl2
Bromine, Br2
Iodine, I2

Solutions that reacted:Mg(s) + Cu(NO​3)2 (aq) → Cu(s) + Mg(NO3)2 (aq)Zn(s) + Cu(NO​3)2 (aq) → Cu(s) + Zn(NO3)2 (aq)Mg(s) + Zn(NO​3)2 (aq) → Zn(s) + Mg(NO3)2 (aq)Cu(s) + 2AgNO​3 (aq) → 2Ag(s) + Cu(NO3)2 (aq)Mg(s) + 2AgNO​3 (aq) → 2Ag(s) + Mg(NO3)2 (aq)Zn(s) + 2AgNO​3 (aq) → 2Ag(s) + Zn(NO3)2 (aq)

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