Question

What is the bond angle between the hydrogen atoms in an ammonia (NH3) molecule? Also, how do i find them?

Answer 1

This is done experimentally, you cannot simply figure them out by theoretical drawings done by hand.
But, you can use VSPER theory to find the shape that helps you determine approximate angles.

Start by drawing the structure of ammonia, can you do that?

Answer 2

yeah one sec

Answer 3

will this work, sorry bout the other stuff.

Answer 4

angles u should memorize

Answer 5

i take it you want me to look up what the common value sor those angles are then?

Answer 6

http://openstudy.com/study#/updates/53be907ae4b05c273e9b4b12

Answer 7

i've already given those angles and shapes
so u can check that link

Answer 8

just go down to where i was giving angles

Answer 9

ohh. ok

Answer 10

so wait, would that mean if i were to draw it as a diagram i would need to put the 3 hydrogens in a triangle around the nitrogen?

Answer 11

http://prntscr.com/6h7b98 like this

Answer 12

the upper part where there is a lone pair
pushes the bonding pairs down
and the angle between bonding pairs is 107
so you would make the angles between all Hs that are connecting to N as same
and have it downwards, giving more space to region around lone pair of N

Answer 13

ohh, i think i get it, though i will definitly be looking on the internet to try and understand better, thankyou for your help

Answer 14

no problem :)