Question

calculate the number of C, H and O atoms in 1.50 g of glucose (C6H12O6) a sugar.

Answer 1

can u find mole of C6H12O6 ?

Answer 2

is it 8.3 x 10^-3 mole

Answer 3

mole= mass/Mr

Answer 4

yes you are right

Answer 5

1 mole of C6H12O6 will contain 6 moles of C, 12 moles of Hydrogen & 6 moles of oxygen. M i correct @Somy ?

Answer 6

Now all u hv to do is to find no of moles in 1.50 g C6H12O6

Answer 7

yes

Answer 8

but its not mole its atom

Answer 9

Hmm..we can find number of atoms from moles by multiplying it by avagadro number

Answer 10

no not yet

Answer 11

now what you will to is this

(Mr of C alone * mole that you just got)/ total Mr

Answer 12

and you will get mole of C

Answer 13

do make sure to take Mr of all 6C atoms meaning 12*6

Answer 14

8.33 * 10\(^{-3}\) moles of glucose will produce 6*8.33 * 10\(^{-3}\) moles of carbon

Answer 15

ummm no

Answer 16

12*6= 72 is Mr of C alone
Mr of the whole compound is 180
and mole is 8.3 x 10^-3

so mole of C= (72* 8.3*10^-3)/ 180 =

Answer 17

do same thing with O and H and you will get moles for all of them
then multiply each mole for each element by 6.02*10^23 which is Avogadro number

Answer 18

1 mole of water will contain how many moles of hydrogen ?

Answer 19

H2O if u say is 1 mole then mole of H would be 2*mole/Mr(H2O)

Answer 20

Then how was i wrong ?

Answer 21

\(\color{blue}{\text{Originally Posted by}}\) @Abhisar
8.33 * 10\(^{-3}\) moles of glucose will produce 6*8.33 * 10\(^{-3}\) moles of carbon
\(\color{blue}{\text{End of Quote}}\)

Answer 22

1 mol of water contains 6.022*10^23 molecules. Each molecule of water contains 2 atoms of hydrogen:
Therefore there are 2*6.022*10^23 atoms = 1.2044*10^24 atoms of hydrogen in 1 mol of water.

Answer 23

correct ?

Answer 24

~_~ AB either you are not understanding it or i am doing it wrong
@

Answer 25

@chmvijay

Answer 26

Its glucose not sugar(C12H22O11)

Answer 27

ohkay lets see, btw wt do u mean by Mr ?

Answer 28

molecular mass

Answer 29

@Biha did u get it what they are saying so far?

Answer 30

@chmvijay waaaaaaaaait =_= man i asked you if im doing wrong and he is doing right or opposite way round
@Abhisar is my 2tag teammate ♥

Answer 31

and thnx btw @chmvijay ♥