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

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Presentation transcript:

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? A.Convert Atoms to moleculesConvert Atoms to molecules B.Examine the letters on the pageExamine the letters on the page C.Balance the equationBalance the equation

If you said balance the equation you are right! SF 4 + I 2 O 5 -> IF 5 + SO 2 Balance it to: 5SF 4 + 2I 2 O 5 -> 4IF 5 + 5SO 2

Sorry that answers wrong Back to questionquestion

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: A.moles, grams B.funds, peoplefunds, people C. Atomic mass, gramsAtomic mass, grams

WRONG! Back to questionquestion

Get the mass of: SF 4 = I 2 O 5 = IF 5 = 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!!

Lets start with 4.687g SF g

Cancel Grams and move on to moles

Test your memory! For the last problem we need to know the total amount of IF 5 in order to find the grams A B C

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

Divide or multipl?? Multiply top and then bottom: Top4.687 x1x 4 x Bottom x 5 x 1

So here we are so far… g

This is it! divided by = 7.7 SOOOOO 7.7 IF 5 is produced when 4.687g of SF 4

Now 6.281g of I 2 O 5 5SF 4 + 2I 2 O 5 -> 4IF 5 + 5SO 2 Remember* grams _______ x ________x________

A different look at it

No No No you try it! Here WE GO!

A different look at it

Did you get-? A grams IF grams IF 5 B grams IF 5 C. 768 mol IF mol IF 6 *hint: Round!

Check your math BACK

NOPE! BACK