CHAPTER 10

THEMOLE

PART 2

MOLE CACLULATIONS!

CORRECTION: A mole of marbles WOULD NOT fit into a box!

CORRECTION: A mole of marbles WOULD NOTfit into the North Building Lobby

1.What’s given will often be the _________________________ in your dimensional analysis.

2. Write the ____________________________________ where the end of the dimensional analysis will be.

3. Write down the ________________________ you will need for your conversion factors.

4. Using ___________________________________ write thecorrect conversion factors in your calculation.

5. Cross out _______________. Ensure that your calculation

gives the _____________ you want for your answer.

Converting particles to molesHow many moles of SO2 are found in 3.55 x 1040 molecules of SO2?

Converting particles to moles:How many formula units of NaCl are found in 2.55 moles of NaCl?

1. How many atoms of copper are found in 5.68 moles of copper? (#2 is next slide)

2. How many moles of CO2 are found in 4.22 x 1070 molecules of CO2?

NOW – DO #1 ON YOUR PRACTICE SHEET.

PRACTICE WORKSHEET IS AT THE END OF THIS HANDOUT

REMEMBER, TO GET CREDIT, YOU MUST SHOW YOUR WORK IN DIMENSIONAL

ANALYSIS FORMAT, (SYW in DA format), AND ALSO WRITE YOUR ANSWER WITH THE

CORRECT UNIT.

Converting moles to mass:

Convert 3.00 moles of copper to grams of copper

Converting mass to moles:

Convert 4.77 grams of chlorine to moles of chlorine.

NOW – DO #2 ON YOUR PRACTICE SHEET. REMEMBER, TO GET CREDIT, YOU MUST

SHOW YOUR WORK IN DIMENSIONAL ANALYSIS FORMAT, (SYW in DA format), AND ALSO WRITE YOUR ANSWER WITH

THE CORRECT UNIT.

1. How many moles are there in 35.7 grams of tin?

2. How many atoms are there in 577 moles ofmagnesium?

NOW – DO #3 and #4 ON YOUR PRACTICE SHEET. REMEMBER, TO GET CREDIT, YOU MUST SHOW YOUR WORK IN DIMENSIONAL ANALYSIS FORMAT, (SYW in DA format), AND ALSO WRITE YOUR ANSWER WITH THE CORRECT UNIT.