ilovebmth1234
  • ilovebmth1234
What is the mass of 0.8 moles of Iron? A) 12.1 grams B) 25.2 grams C) 44.7 grams D) 100.8 grams
Chemistry
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
RamiroCruzo
  • RamiroCruzo
Mass=Number of moles X Atomic Mass or Molecular Mass Atomic Mass of Fe= 56u
ilovebmth1234
  • ilovebmth1234
i saw that on the yahoo answers but the answer has to be A,B,C,or D
RamiroCruzo
  • RamiroCruzo
???? I didnt copy...... (T~T) Its C) 44.7gm

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ilovebmth1234
  • ilovebmth1234
no im sorry i didnt think you copied lol i was just saying i saw that on a yahoo question :) im sorry and thanks would you like to help me with one more?
RamiroCruzo
  • RamiroCruzo
Yup....
RamiroCruzo
  • RamiroCruzo
???
ilovebmth1234
  • ilovebmth1234
Using the Periodic Table, determine the atomic mass of Na2C2O4. A) 134 grams B) 124 grams C) 114 grams D) 104 grams
RamiroCruzo
  • RamiroCruzo
Just solve it yourself... :p 2Na+2C+4O=2(23)+2(12)+4(16)=??? Note: Its molecular mass not atomic mass
whpalmer4
  • whpalmer4
Add up the atomic mass of two sodium atoms, two carbon atoms, and four oxygen atoms. That's your answer. Should be able to do these on your own with the knowledge you have now.
RamiroCruzo
  • RamiroCruzo
Hmmmmm,,, It comes up to be 134gms....
ilovebmth1234
  • ilovebmth1234
thanks guys and @whpalmer4 thanks for breaking it down i appreciate both of you

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