Posted by **rose** on Friday, February 22, 2013 at 1:18pm.

a sample of glucose, c6h12o6 contains 2.03*10^21 atoms of carbon.

(a)how many atoms of hydrogen does it contain?

(b)how many molecules of glucose does it contain?

(c)how many moles of glucose does it contain?

(d)what is the mass of this sample in grams?

its kinda long, but i would appreciate it if someone would guide me through it

thank you:)

- chemistry -
**Devron**, Friday, February 22, 2013 at 1:51pm
Molecular weight of glucose is 180.16 g/mo and its formula is C6H1206.

a.) 2.03 x10^21 atoms of carbon*(1 mol/6.02 x 10^23 atoms)*(12 moles of H/6 moles of C)*(6.02x10^23 atoms/mole of H)=atoms of H

****Notice that Avogadro's number cancels out

b.) 2.03 x10^21 atoms of carbon*(1 mol/6.02 x 10^23 atoms)*(1 mole of glucose/12 moles of C)*(6.02 x 10^23 atoms/1mole of glucose)= molecules of glucose

****Notice that Avogadro's number cancels out

c.)2.03 x10^21 atoms of carbon*(1 mol/6.02 x 10^23 atoms)*(1 mole of glucose/12 moles of C)= moles of glucose

d.2.03 x10^21 atoms of carbon*(1 mol/6.02 x 10^23 atoms)*(1 mole of glucose/12 moles of C)*(180.16 g/mole)= glucose in grams

- chemistry -
**rose**, Friday, February 22, 2013 at 2:07pm
Thank you soooooooooooo much!!!

- chemistry -
**Anonymous**, Saturday, July 20, 2013 at 2:23pm
42

- chemistry -
**Corona**, Wednesday, December 3, 2014 at 11:47pm
On problem C, why is the mole for Carbon 12 and not 6. Isn't the mole of H 12?

## Answer This Question

## Related Questions

- Chemistry - A sample of glucose, C6H12O6, contains 1.300x10exponent21 atoms of ...
- Chemistry - A sample of glucose, C6H12O6, contains 5.1x10623. a.)How many atoms ...
- Chemistry - A sample of glucose, C6H12O6, contains 5.1x10623. a.)How many atoms ...
- gen chem - A sample of glucose C6H12O6 contains 2.03x10^21 atoms of carbon. how ...
- Ap Biology - During aerobic respiration, glucose is broken down to form several ...
- AP Biology - During aerobic respiration, glucose is broken down to form several ...
- Chemistry - A sample of toluene, C7H8 has a mass of 74.5 g. a) how many ...
- Chemistry - A sample of toluene, C7H8 has a mass of 74.5 g. How many moles of ...
- chemistry - I need help doing the work, I think something might be wrong. How ...
- Chemistry - A sample of toluene, C7H8 has a mass of 74.5 g. How many carbon ...

More Related Questions