# chemistry

how many carbon particles are there in 4.25 mole of C6 H12 O6?

i do not get how to solve this. my teacher said something about conversion factors but i still don't understand how u isolate the carbon from the whole compound. can someone please explain how to get to this, step by step??

-- thank you =)

1. Your teacher is talking about the conversion factor to convert moles C6H12O6 to moles C. That is how you isolate C from the whole molecule.
There are 6.02 x 10^23 molecules (particles) of C6H12O6 in a mole of anything (in this case a mole of C6H12O6). So how many molecules are in 4.25 moles. That must be obvious that it is 4.25 x the number in a mole but to do it with conversion factors works like this.
4.25 moles C6H12O6 x (6.02 x 10^23 molecules C6H12O6/1 mole C6H12O6) = 2.558 x 10^24 molecules C6H12O6. Some call this the unit factor method and some call it dimensional analysis. At any rate, note that the factor is placed (it could be upside down if necessary) so that the unit we don't want (moles in this case) cancel and the unit left standing is molecules (particles) and we want the answer in molecules. So far so good BUT we have the number of molecules in 4.25 moles C6H12O6. So now we use another factor to convert from moles C6H12O6 to moles C.
2.558 x 10^24 molecules C6H12O6 x (factor) = ?? moles C
2.558 x 10^24 molecules C6H12O6 x (6 molecules C/1 molecule C6H12O6) = 1.535 x 10^25 molecules C which I would round to 1.54 x 10^25. Note again that molecule C6H12O6 cancel and leaves standing the unit we want which is molecules C. Please respond if this is not clear but explain what you don't understand about it. This could have been done in one step by using the two factors at the same time; ie.,
4.25 moles C6H12O6 x factor x factor.
4.25 moles C6H12O6 x (6.02 x 10^23 molecules/1 mole C6H12O6) x (6 molecules C/1 molecule C6H12O6) = 1.54 x 10^25 molecules C.
Check my thinking. Check my arithmetic.

posted by DrBob222

## Similar Questions

1. ### chem

A carbon nucleus has six protons and six neutrons. How many electrons would it take to equal the mass of a carbon nucleus? my teacher said 6pt x conversion to make kg and then add that to 6nx conversion to make kilograms. then
2. ### chemistry

i cant understand anything in carbon and its compounds. can you give me any the basics of what i need to learn in carbon and its compounds Carbon has a usual oxidation state(valence) of +4 and it can bond to itself. Therefore,
3. ### Chemistry

Just having some trouble with this chemistry problem.. Thanks for help! Toxic carbon monoxide (CO) gas is produced when fossil fuels such as petroleum burn without enough oxygen. The CO can eventually be converted to CO2 in the
4. ### Chemistry 1

I have trouble understanding ratios and relativity so I can't understand how to use atomic mass units. Here is an example from my book: How many grams of iron would contain the same number of iron atoms as the number of carbon
5. ### Chemistry

So I have the balanced equation: c3H8 +502 = 3C02 +4H20 Question: At STP propane (C3H8) burns in oxygen to form 2.15L of carbon dioxide and water. So I've got 2.15 L x 1 mole /22.4 L But when I try to do the mole ratio, I don't
6. ### Chemistry (My previous post lacked something)

Question: At STP propane (C3H8) burns in oxygen to form 2.15L of carbon dioxide and water. The question is in 4 parts. I just need the first: a)What mass of oxygen is necessary for this reaction? So far I've got 2.15 L x 1 mole
7. ### Chemistry

Completion Mole ratios from balanced equations may be used to solve problems with other units such as numbers of ______ and _______ of gases at STP. The _______ from the balanced equation are used to write conversion factors
8. ### chemistry

calculate the amount of carbon dioxide that could produced when the one mole of carbon is burnt in 8gms of dry oxygen
9. ### chemistry

Assuming that the volumes of carbon diox- ide and of propane are measured under the same experimental conditions, what volume of carbon dioxide is produced by the complete combustion of 20 L of propane? i just don't understand
10. ### gen chem

A sample of glucose C6H12O6 contains 2.03x10^21 atoms of carbon. how many atoms of hydrogen does it contain? mole of H= 6.02x10^23/2.03x10^21? i don't know if my formula is right and i also don't know where to get the mole of H.

More Similar Questions