anonymous
  • anonymous
how do i find the percent composition for this pb02
Chemistry
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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abb0t
  • abb0t
Find the mass of each individual element and divide by the molar mass. then multiply by 100%.
nincompoop
  • nincompoop
I am not sure what pb is and 02 so the answer to your question is unknown. there's not one element in there
thomaster
  • thomaster
\(\sf\large PbO_2~=~Lead~dioxide~\ddot\smile\)

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thomaster
  • thomaster
i think he means that :P
nincompoop
  • nincompoop
that could have been Phosphorus and Boron
thomaster
  • thomaster
true :P phosphorus boron oxygen
thomaster
  • thomaster
meh we'll see when @dave6heat responds :)
abb0t
  • abb0t
Don't just assume, @thomaster !! That's so rude!
anonymous
  • anonymous
um guys it's lead dioxide so whats the percent composition
abb0t
  • abb0t
Like I said up above: Find the mass of each individual element and divide by the molar mass. then multiply by 100%.
abb0t
  • abb0t
You may want to take out your periodic table for this.
anonymous
  • anonymous
yes i have my periodic table thanks
nincompoop
  • nincompoop
then start counting masses, sum them all up and then like what abb0t said compare each element or allotrope against that sum and then multiply it by 100.
nincompoop
  • nincompoop
Pb = 207.2 amu x 1 = 207.2 amu O = 15.999 amu x 2 = 31.998 amu 207.2 + 31.998 = 239.198 \[(207.2 \div 239.198) \times 100 =\] \[(31.998 \div 239.198) \times 100 = \]

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