Regents Chemistry Due Date

Chemistry – Mr. Kalkman Name:

Regents Chemistry Due Date: Activity Series: A Laboratory

Simulation

Go to Mr. Kalkman’s website – kalkmanchemistry.wikispaces.com – and click on

“Regents Chemistry” on the side of the page. Click on “Labs”. Click on the “Activity Series Lab” link.

Purpose: Which metals are more active than others? Remember: A solid metal will only react with a metal ion if the solid is more reactive (active) than the ion!

I. Data Collection: Eight Solutions

A. Click on the start button on the website to initiate the opening activity. You should see a graphic that appears similar to figure A.

B. Hold your cursor over the beakers to display a magnifier. Click each of the top 4 beakers separately to view its submicroscopic contents. Record what you see in the beakers of figure A below. II. Interpretation

A. Why are the water molecules not displayed in the submicroscopic view?

B. List two characteristics that are the SAME for each solution, and two characteristics that

make them DIFFERENT.

C. Identify the species that accounts for the COLOR of each of the four solutions. What

evidence did you use to arrive at your conclusions?

III. Data Collection: Activity One

A. Go to Activity One in the simulation, pick one of the metals and follow the instructions to test its interaction with each of the solutions. Record your observations in Table 1 below.

Describe any evidence you see for a chemical reaction. What changes do you see in the metal? What changes do you see in the solutions?

B. Repeat this process with each of the metals.

Table 1

Mg+2 Cu+2 Zn+2 Ag+1

Ag IV. Data Analysis

A. Write a chemical equation for each reaction THAT YOU SAW!

(Hint: if stuck, try clicking on the molecular scale reactions button)

B. Rank the metals in order of most reactive to least reactive, similar to Table J, in Table 2 below. What criteria did you use for your rankings?

Table 2

Most Reactive

Least Reactive C. Click on the molecular scale button in the laboratory simulation to view the metal / metal ion interactions at the submicroscopic level. Follow instructions in the software. Describe your observations of reacting combinations. Make sure you try a few reactions that occur and some combinations were no reaction takes place. (Note: You are not responsible for all this information, such as Redox, on this current test. However, we will come back to this later in the year.)

V. Data Collection: Activity Two

Go to Activity Two and repeat what you did in Activity One with a new set of metals and metal cations.

Table 3

Fe+2 Cu+2 Zn+2 Pb+2 Fe

VI. Data Analysis

 

Table 4

Most Reactive

Least Reactive

VII. Data Collection: Activity Three

Go to Activity Three and repeat what you did in Activity One and Two with a new set of metals and metal cations.

Table 5 Fe+2 Pb+2 Ni+2 Sn+2

VIII. Data Analysis

 

Table 6

Most Reactive

Least Reactive

IX. Data Analysis and Conclusions

Use the data you collected in Activities One, Two, and Three to rank the eight metals you have studied.

Table 7

Most Reactive (Active) Least Reactive (Active

X. Questions:

1. Using your activity series that you just created, determine if the following reactions will

occur. If the reaction does NOT occur, write “No Reaction” next to it. If the reaction

DOES occur, write the products of the reaction.

a. Ni(NO3)2 + Ag  b. AgNO3 + Sn 

c. Mg(NO3)2 + Ni 

d. Mg + Sn(NO3)2 

e. AgNO3 + Mg 

2. An unknown metal, M, is found to react with AgNO3, Pb(NO3)2 and Cu(NO3)2, but not

with Ni(NO3)2, Mg(NO3)2, Zn(NO3)2. Where should the unknown metal, M, appear in

your activity series? (i.e. between which metals?)

3. What is a possible identity of unknown metal M? (Hint: use Table J)

XI. Activity 4

A. Predict where Hydrogen would be located on your activity series using an “I think…

Because…” statement.

B. Click on Activity 4 and follow the directions. Make sure you click on each metal. How can you tell if a reaction is occurring?

C. What is the gas coming out of the solution?

D. Using your observations from the activity, and your activity series you created in this lab, where should Hydrogen be located on the table? Support with evidence from Activity 4.