anonymous
  • anonymous
gen chem 1: A sample of PbCO3 , XPb(OH)2 was heated with excess sulfuric acid, yielding PbSO4, H2O, and CO2. If 2.280g of PbSO4 and 0.1104g of CO2 were obtained, what is the value of X?
Chemistry
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
So, PbCO3 XPb(OH)2 + H2SO4 ---> PbSO4 + H2O unbalanced
anonymous
  • anonymous
oops i meant PbCO3 XPb(OH)2 + H2SO4 ---> PbSO4 + H2O + CO2 unbalanced
anonymous
  • anonymous
I traced CO2 to PbCO3, one mole of PbCO3 = one mole of CO2.

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anonymous
  • anonymous
I saw a yahoo answer that said the next solution is to trace PbSO4 to XPb(OH)2, I wonder how that's possible since there are two sources of Pb
anonymous
  • anonymous
did u get the answer?
anonymous
  • anonymous
no =/
aaronq
  • aaronq
so you find the moles of PbSO4 and CO2, their ratio is 3:1 use the equation: PbCO3 XPb(OH)2 + H2SO4 ---> PbSO4 + H2O + CO2 3 1 notice that the only source of SO4 is H2SO4, so: PbCO3 XPb(OH)2 + H2SO4 ---> PbSO4 + H2O + CO2 3 3 1 only source of C from CO3 is C from CO2, PbCO3 XPb(OH)2 + H2SO4 ---> PbSO4 + H2O + CO2 1 3 3 1 the result from 3 moles of Pb produced, 3: so , PbCO3 XPb(OH)2 + H2SO4 ---> PbSO4 + H2O + CO2 1 2 3 3 1 now just add up the oxygens
anonymous
  • anonymous
thanks
aaronq
  • aaronq
no prob

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