1. Stoichiometry !!

2. Problem
What mass of CdS is produced if 8.47g of cadmium reacts with 2.51g of sulfur ?
Cd + S CdS
Next!!

3. What’s The First Step To Solving This Problem ?.
Figure Out The
Grams For Cd
Convert The Grams
Into Moles.
Make Sure The Problem Is Balanced.
Back !!

4. Sorry. Try Again !! .
Incorrect
Back To Question!!

5. The Next Step Is Changing 8. 47g of Cd Into Moles
The Next Step Is Changing 8.47g of Cd Into Moles. How Would You Do That ? .
112.41gCd *
8.47gCd *
Back To Problem !!

6. Sorry. Try Again !!
Incorrect
Back To Question !!

7. The Next Step Is: Where Did The 1’s Come From ?
The Mass
The Charges
The coefficients
Back To The Problem !!

8. Sorry. Try Again !!
Incorrect
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9. The Mass of CdS (144.47)would go over ??
1molCdS
1molCd
112.41gCd
Back To Problem !!

10. Sorry. Try Again !!
Incorrect
Back To The Question !!

11. Do The Calculations !! 8.47gCd * * * is equal to ?? 10.89gCd
10.89molCd
10.89gCdS
Back To Problem !!

12. Sorry. Try Again !!
Incorrect
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13. Now, Change 2.51gS into grams of CdS.
2.51gS * * * = gS
2.51gS * * * = gCd
2.51gS * * * = gCdS

14. Sorry. Try Again !!
Incorrect
Back To Question!!

15. 8.47gCd is 10.89gCdS. 2.51gS is 11.31gCdS. Which one is the limiting reactant ?

16. Your Finished !!
Good Job !!

17. Sorry. Try Again !!
Incorrect
Back To Question !!