percentage atom economy and nitrogen monoxide exothermic question

1)Can the answer be B as well as D -Edit: I get this one now just the other 2 below I don't get
2)Isn't percentage atom economy =molecular mass of desired product/sum of molecular mass of all products? None of the options show this
3)errm maybe A?but am confused all the same

(edited 6 years ago)

OP

...

I think for the second question it would be D. Since you can't just get rid of energy or matter the Mr of products and reactants should be the same, right??

Like if you had H2+ 1/2 O2 -> H2O

The Mr would be the same on both sides. (18)

For the third question A would make sense since N would have a lone pair if only connected to one oxygen atom.

(I would recommend getting someone elses opinion since I am still learning all this :tongue:

)

Reply 3

Kalabamboo

OP

14

Original post by monkeyman0121

I think for the second question it would be D. Since you can't just get rid of energy or matter the Mr of products and reactants should be the same, right??

Like if you had H2+ 1/2 O2 -> H2O

The Mr would be the same on both sides. (18)

For the third question A would make sense since N would have a lone pair if only connected to one oxygen atom.

(I would recommend getting someone elses opinion since I am still learning all this :tongue:

)

Thanks a lot! :smile:

The atom economy one makes sense now.

But still a bit iffy about the third question - wouldn't NO have an unpaired electron? Thanks for making me get the first one!But yh hope someone else replies about the last one.

Reply 4

monkeyman0121

20

Original post by Kalabamboo

Thanks a lot! :smile:

The atom economy one makes sense now.

But still a bit iffy about the third question - wouldn't NO have an unpaired electron? Thanks for making me get the first one!But yh hope someone else replies about the last one.