Question

A compound of nitrogen have largest % composition of nitrogen
a:NH3
b:HNO3
c:NH4OH
d:(NH2)2CO

Answer 1

explain me please

Answer 2

for that you have to find out molar mass of all these compounds

Answer 3

for example NH3
molar mass = 14+3=17
in 17 gram it has 14 gram of N
but for 100 gram = 100 *14 /17 =82.35 %
like this calculate for all and find in which case % of N is highest

Answer 4

hello cant you do this or any problem in understanding this :) @Ryaan

Answer 5

I solved and got higest% in NH3..is it correct?

Answer 6

and plus i was little confuse..in finding molecular mass of (NH2)2CO coz this is in bracet..can you help me in this?? means how to calculate

Answer 7

(NH2)2CO= i calculated this way..14+2=16*2=32..thenC:12+O:16=28..28+32=60
is right?

Answer 8

wait let me check

Answer 9

ok

Answer 10

d:(NH2)2CO
in this how much % u got

Answer 11

23.33

Answer 12

LOL u should get 46.6 bcoz in this case
60 gram of urea (NH2)2CO contains 28 gram of N right
then for 100 gram = 28*60 /100 =46.6

Answer 13

there are 2 N atoms in urea molecule (NH2)2 =N2

Answer 14

????

Answer 15

You're right...lol i calculated wrong

Answer 16

you are right its NH3 which is having high % of N

Answer 17

I put 14 instead of 28 then divided nd got:23.3%..which was wrong .....
and thanks for the help..

Answer 18

yaaa you now understood where was the really problem good :)yw