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stoichohnotes18f2005

# stoichohnotes18f2005 - Unit 8 Stoichiometry involves...

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Unit 8: Stoichiometry -- involves finding amts. of What can we do with stoichiometry? For generic equation: R A + R B P 1 + P 2 Given the… …one can find the… amount of R A (or R B ) amount of R B (or R A ) that is needed to react with it amount of R A or R B amount of P 1 or P 2 that will be produced amount of P 1 or P 2 you need to produce amount of R A and/or R B you must use 2 patties + 3 bread 1 Big Mac® 4 patties + ?

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2 excess + 18 bread ? ? + ? 25 Big Macs® __TiO 2 + __Cl 2 + __C __TiCl 4 + __CO 2 + __CO 2 TiO 2 + 4 Cl 2 + 3 C 2 TiCl 4 + 1 CO 2 + 2 CO How many mol chlorine will react with 4.55 mol carbon? What mass titanium (IV) oxide will react with 4.55 mol carbon? How many molecules titanium (IV) chloride can be made from 115 g titanium (IV) oxide? = 8.7 x 10 23 m’cules TiCl 4 Island Diagram helpful reminders:
1. Use coefficients from the equation only when crossing the middle bridge. The other six bridges always have “1 mol” before a substance’s formula. 2. The middle bridge conversion factor is the only one that has two different substances in it. The conversion factors for the other six bridges have the same substance in both the numerator and denominator. 3. The units on the islands at each end of the bridge being crossed appear in the conversion factor for that bridge. 2 Ir + Ni 3 P 2 3 Ni + 2 IrP If 5.33 x 10 28 m’cules nickel (II) phosphide

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4 react w /excess iridium, what mass iridium (III) phosphide are produced? =
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stoichohnotes18f2005 - Unit 8 Stoichiometry involves...

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