Mole Stations Lab Part 1

Mole Station #1: Aluminum

Procedure

Take the necessary measurements, and record them with units. Show all your calculations, rounding your answers to two decimal places and labeling units clearly.

1. Find and write down the molar mass of one mole of aluminum.

2. Find and record the mass of the aluminum can.

3. Answer the following questions:

Does the aluminum sample contain more than, less than, or exactly one mole of aluminum?

4. How many moles of aluminum are in the aluminum can (Show your work)?

5. How many individual atoms of aluminum are in one aluminum can?

Check your answers with the student experts for aluminum, and ask them to initial your original data to certify that they are correct.

Moles Station #2: Carbon

Procedure

Take the necessary measurements, and record them with units. Show all your calculations, rounding your answers to two decimal places and labeling units clearly.

1. Find and record the molar mass of carbon.

2. Find and record the mass of the carbon sample.

3. Answer the following questions:

Does the carbon sample contain more than, less than, or exactly one mole of carbon?

4. How many moles of carbon atoms are in the carbon sample?

5. How many individual atoms of carbon are in the carbon sample?

Check your answers with the student experts for carbon, and ask them to initial your original data to certify that they are correct.

Moles Station #3: Copper

Procedure

Take the necessary measurements, and record them with units. Show all your calculations, rounding your answers to two decimal places and labeling units clearly.

1. Find and record the molar mass of copper.

2. Find and record the mass of the copper sample.

3. Does the copper sample contain more than, less than, or exactly one mole of copper?

4. How many moles of copper atoms are in the copper sample?

5. How many individual atoms of copper are in the copper sample?

Check your answers with the student copper experts, and ask them to initial your original data to certify that they are correct.

7. Determine the mass of a pre-1982 penny and write down.

8. How many moles of copper are in the penny?

9. How many atoms of copper are in the penny?

10. How many pennies are needed to make a mole of copper?

Moles Station #4: Iron

Procedure

Take the necessary measurements, and record them with units. Show all your calculations, rounding your answers to two decimal places and labeling units clearly.

1. Find and record the molar mass of iron.

2. Find and record the mass of 10 iron nails.

3. Do 10 nails contain more than, less than, or exactly one mole of iron?

4. How many moles of iron atoms are in the 10 nails?

5. How many individual atoms of iron are in the 10 nails?

Check your answers with the student iron experts, and ask them to initial your original data to certify that they are correct.

Moles Station #5: Silicon

Procedure

Take the necessary measurements, and record them with units. Show all your calculations, rounding your answers to two decimal places and labeling units clearly.

1. Find and record the molar mass of silicon.

2. Find and record the mass of the silicon sample.

3. Does the silicon sample contain more than, less than, or exactly one mole of silicon?

4. How many moles of silicon atoms are in the silicon sample?

5. How many individual atoms of silicon are in the silicon sample?

Check your answers with the student silicon experts, and ask them to initial your original data to certify that they are correct.

Silicon is to geologists what carbon is to biologists. It makes up 28% of Earth’s crust and is found in many minerals. Sand, quartz, and glass are all made up of silicon dioxide (SiO2).

6. Is silicon dioxide an element or a compound?

7. How many moles of silicon are in one mole of silicon dioxide?

8. How many moles of oxygen are in one mole of silicon dioxide?

Moles Station #6: Sodium

Procedure

Take the necessary measurements, and record them with units. Show all your calculations, rounding your answers to two decimal places and labeling units clearly.

1. Find and record the molar mass of sodium.

2. How many mg of sodium are in one serving of snack crackers?

3. How many g of sodium are in one serving of snack crackers? (remember king henry!)

4. How many moles of sodium are in one serving of snack crackers?

5. How many individual atoms of sodium are in one serving of snack crackers?

Check your answers with the student sodium experts, and ask them to initial your original data to certify that they are correct.

Healthy American adults should restrict their sodium intake to no more than 2,400 milligrams per day. This is about 1¼ teaspoons of table salt (sodium chloride [NaCl]).

6. What is the maximum number of moles of sodium recommended in your diet? How many sodium atoms would this be?