How many moles of molecules and atoms are in a 3.2 g sample of CH4?
Answer:
ah, chem.
you'll have to go from grams to moles to molecules:
3.2g ch4 X 1 mole CH4/gram form. mass of CH4=16.042 g X 6.02x10^23 particles[avagadros law]/1 mole CH4
--plug into calculator for answer.
as you can see, everything cancels out except for the particles, which is on top. particles include atoms and molecules, so this answer is the same for both.
0.2 Moles of molecules
0.2 Moles of atoms of C
0.8 moles of atoms of H
The molecular mass of CH4 is 16 (C=12 and H=1). Hence 16 g of CH4 will contain one mole of molecules (or 5 moles of atoms).
3.2g of CH4 will contain 0.2 moles of molecules (or 1 mole of atoms).
Hope I have answered your question.
3.0 x 10'22 molecules of CH4
its like 5.12mol if the carbon is rounded to a whole #
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