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To Do Stoichiometry .

To Do Stoichiometry. To do Stoichiometry is easy first find a problem !. What mass of IF 5 is produced when 4.687g of SF 4 reacts with 6.281g of I 2 O 5 to produce IF 5 and SO 2 ?. What is the first step?. Convert Atoms to molecules Examine the letters on the page Balance the equation.

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To Do Stoichiometry .

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  1. To Do Stoichiometry.

  2. To do Stoichiometry is easy first find a problem!

  3. What mass of IF5 is produced when 4.687g of SF4 reacts with 6.281g of I2O5 to produce IF5 and SO2?

  4. What is the first step? • Convert Atoms to molecules • Examine the letters on the page • Balance the equation

  5. If you said balance the equation you are right! SF4 + I2O5 -> IF5 + SO2 Balance it to: 5SF4 + 2I2O5 -> 4IF5 + 5SO2

  6. Sorry that answers wrong Back to question

  7. Next Step! Remember that you put what needs to be canceled on the bottom and what your trying to find on the top. So what are we trying to find and canceling out: • moles, grams • funds, people C. Atomic mass, grams

  8. WRONG! Back to question

  9. Get the mass of: SF4 = 108.065 I2 O5 = 333.8 IF5 = 221.9 How would you find this? Just take the atomic mass and multiply it by what ever the coefficient is attached to the element in the problem then add um all up!! 

  10. Lets start with 4.687g SF4 4.687g

  11. Cancel Grams and move on to moles

  12. Test your memory! For the last problem we need to know the total amount of IF5 in order to find the grams • 667.7 • 221.9 • 78.09

  13. Were you listening?? Smh :/ Back to the question!

  14. Divide or multipl?? Multiply top and then bottom: Top 4.687 x1x 4 x 221.9 Bottom 108.065 x 5 x 1

  15. So here we are so far…. 4.687g

  16. This is it! 221.9 divided by 540.325 = 7.7 SOOOOO 7.7 IF5 is produced when 4.687g of SF4

  17. Now 6.281g of I2 O5 5SF4 + 2I2O5 -> 4IF5 + 5SO2 Remember* grams _______ x ________x________

  18. A different look at it

  19. No No No you try it! Here WE GO!

  20. A different look at it

  21. Did you get-? • 5575.0156 grams IF5 • 8.35 grams IF5 • 768 mol IF6 *hint: Round!

  22. Check your math BACK

  23. NOPE! BACK

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