Tuesday, July 28, 2009

C + O2 give CO2 ???

C + O2 ------------------%26gt; CO2 ( 44gm)





1 mole of Carbon %26amp; 1 mole of Oxygen gas react together to give 1 mole of Carbondioxide gas which is 44 gm


What does 44 gm means?


Mass of 1 molecule of CO2 {44g/molecule} ?


Mass of 1 mole of CO2 {44g/mole} ?


44 a.m.u of CO2 ?


What's correct answer if any of above %26amp; what's reason or explation.....................making me so confused.....


You get 10 points if u Ans correct


Plz provide resource/reference too..........

C + O2 give CO2 ???
It cannot be 1 molecule, since molecules are incredibly small. Could it be one mole? C is 12 g/mole and O is 16 g/mole, so that would be 12+16+16 for CO2, or 44. Seems right.
Reply:A Mole(symbol: mol) is the SI base unit that measures an amount of substance. The mole is a counting unit. One mole contains Avogadro's number (approximately 6.02214×1023) entities (atoms or molecules).





A mole is much like "a dozen" in that both are absolute numbers (having no units) and can describe any type of elementary object (object made up of atoms). The mole's use, however, is usually limited to measurement of subatomic, atomic, and molecular structures; tradition and its magnitude compared to more common units make it impractical for other uses.





In practice, one often measures an amount of the substance in a gram-mole, which is the quantity of a substance whose mass in grams is equal to its formula weight. Thus a gram-mole for Carbon-12 has a mass of 12 grams, while a gram-mole of water has a mass of 18.016 grams. The entity counted is usually an atom (as in C) or a molecule (as in H2O, molecular formula weight = 2 H atoms + 1 O atom ≈18).
Reply:Carbon Dioxide or CO2 is actually one (1) Carbon + two (2) Oxygen (aka Dioxide).





1 Carbon = 12 g/mol


1 Oxygen = 16 g/mol


1 Oxygen = 16 g/mol


----------------


CO2 = 44 g/mol





Molar Mass is the weight of an individual element per mole expressed in grams (g).
Reply:44gm just means 44 grams which is the mass of 1 mole of CO2


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