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Topic: Stoichiometry  (Read 7867 times)

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Offline tomariemd

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Stoichiometry
« on: July 29, 2007, 04:07:53 PM »
*delete me* I have no clue on these..they are in a study guide...

when 1.187g of metallic oxide is reduced with excess hydrogen, 1.054g of the metal is produced? What is the metallic oxide??? 

What mass CaCO3 will produce 8.0L of C)2 measured at STP
CaCO3>CaO +CO2.....CaCO3 =100gram (MW)
do u  use 22.4 for STP L???

Thanks!!
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Offline sdekivit

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Re: Stoichiometry
« Reply #1 on: July 30, 2007, 04:57:50 PM »
indeed use 22.4 L/mol for the molar volume of an ideal gas at STP (T = 273 K and p = p0)
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Offline AWK

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Re: Stoichiometry
« Reply #2 on: July 31, 2007, 03:36:07 AM »
Quote
when 1.187g of metallic oxide is reduced with excess hydrogen, 1.054g of the metal is produced? What is the metallic oxide???
Hint.
Your oxide contains 1.054 gram of metal and 0.133 g of oxygen. Convert these numbers to molar ratio
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AWK
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