Question

The Weight of heavy water containing 5*10^5 D atoms is?

Answer 1

D atoms?

Answer 2

\[\frac{5e5}{6.022e23}*2\]

Answer 3

did nt understand..

Answer 4

Find no of moles and multiply by gram molar mass

Answer 5

\[\frac{5\times10^5atomsD}{6.02\times10^{23}atoms /mol}\times \frac{2g/mol}{D}=1.66\times10^{-18}g\]

Answer 6

the answer should be 8.3* 10^-18g

Answer 7

that is for regular hydrogen @shameer1

Answer 8

did nt understand

Answer 9

@.Sam. @myininaya @blues

Answer 10

If its deuterium then Unkle is right

Answer 11

actually now i think i have miss interpreted the question
the question is asking for mass of heavy water, not a mass of Deuterium, heavy water has a mixture of normal hydrogen and deuterium in the water molecules

Answer 12

can anyone answer it now..

Answer 13

Call me an idiot if I am wrong but I believe the molar mass of heavy water is about 20 g / mol, not 2 as above...

Answer 14

yeah i was getting confused with the hydrogen and the water

Answer 15

molar mass of h20 = 18 is it,....

Answer 16

H-2 is 2 g/mol, checked, http://www.ptable.com/