85 Replies
@Dexter
Note for OP
+solved @user to close the thread when your doubt is solved. Mention the user who helped you solve the doubt. This will be added to their stats.C7H16
Are you sure?
yes
How then?
divide the percentage with the mass of the atom
for this case
C--> 12g
H---> 1g
82/12 ---> approx 7
17/1---> 17 (but i took 16 cuz hydrocarbons occur in the form of CnH2n+2 so 16)
y do i divide w/ the % ?
Hydrocarbons to alkene and alkynes BHI Hote hai
bhai hame C ka approx value 7 mila he
if it will be alkene means
C7H14
If alkane means C7H16
Alkyne C7H12 exists
but the closest compound to those percentages is c7h16
but y do divide it by the %
u assume the total mass as 100
then c will be 82g and h will be 17g
( its to make it easier for us to solve) You can assume it any value tbh but for the sake of calculation
To convert it into moles ig
It came in my school test
So whats the final answer?
OHHH, so that's what happens when you dont do chem at all for 5 days straight
Listen to the vns 🙂
Uhh what is vns?
oh ok ty sir, will keep that in mind from now on
yea mb i understood my mistake 🔥
iteachchem
Transcription requested by zyrokkin
That's all my suggestion is, if you're looking to just solve a question, that's also fine, but you have to understand the solution.
Voice notes
Oh ok
iteachchem
Transcription requested by TOBI .')
No, it's where you'll have to use a calculator. You get 6.89 is 217.3, which then becomes 1 is 2.5. It then becomes. C2H5, that's the answer.
ngl this thing is pretty cool, i was wondering what the notepad was about since so long
Sir can you please write the answer I have difficulty in English language🤡
@Gaurav
iteachchem
Transcription requested by TOBI .')
We are not dividing by percentage. I don't know if you've heard my earlier message. You take the basis to be 100 grams. So 100 gram mese 82% means 82 grams. So 82 grams is carbon divided by molar mass of carbon which is 12 gram per mole. So look at the units. Gram and gram get cancelled, mole is on top. So you're finding number of moles in 100 grams. Right? So you're getting mole ratios what you're getting. I think you need to revise how empirical formula works. You can check out my session. I've done this in detail.
Sorry for disturbing but what's next? Cutting kese kru?
1: 2.5
CH2 ? wth
I got the same answer I wish sahi hi jaye
nahi hai. not possible coz it doesnt exist
This question wrong then?
So C2H5hoskta hai
@iTeachChem help sir
My friends got that answer
Are 1:2.5 not possible so multiply by 2 , i.e 2:5 but ye kese ban skta, structural formula se to C2H4 ya C2H6 ARE HA 2.5 ko round off krde ig C2H6
2.5 round off 2 ayega I think
na .5 ya usse upar ko next no. pe round off krte
Pehla wala even number nhi Hai?
kya mtlb ?
W8
arey sir ne bataya hai ki c2h5 hai
Oh
c2h5 ho kese skta hai single bond me 6 double me 4ya to q hi galat hai
are CH2 ho skta hai nvm
It can ig
kese banega
Alkenes (CnH2n+1)
double bond ?
Idk read that in 10th
2n+1 to kahi nai aaya hai, 2n, 2n+2, 2n-2 hi hai
i should stay quiet
Alkenes BHI hote uska gen formula 2n + 1 hota
pehli baat alkene CnH2n hota, dusri baat Alkane CnH2n + 2 hota
Ohh wait I messed up
So 2n+1 kahi nai aata
real
Bro Ata Hai I read it somewhere
bhai tu jiski baat krra use alkyl kehte
Haaa
aur usme ek halogen add hojata hai ya ek hydrogen so na wo nahi hoskta
Oh yes bro
+solved @iTeachChem
Post locked and archived successfully!
Archived by
<@1179817028106858538> (1179817028106858538)
Time
<t:1715778128:R>
Solved by
<@1035556259417571408> (1035556259417571408)
What 😮
+reopen
Post unlocked and unarchived successfully!
Unarchived by
<@859821981057679410> (859821981057679410)
Time
<t:1715786829:R>
Is it wrong?
yes
Sir how would I know that 2.5 to 2.0 rule will not apply in cases like this?
ohh ha, ty sir
Gaurav ji, all good? Shall we mark this as solved?
+solved @iTeachChem
Post locked and archived successfully!
Archived by
<@1179817028106858538> (1179817028106858538)
Time
<t:1715851136:R>
Solved by
<@1035556259417571408> (1035556259417571408)
+fsolved
@nermal
Remove the solved tag
Tb krna
I'll fix this on my code
Wapas aake
@ᴘɪᴄᴄʜɪ | 🎧 🎶 nhi ho rha remove
Ab kro
+fsolved+solved @iTeachChem
Post locked and archived successfully!
Archived by
<@1179817028106858538> (1179817028106858538)
Time
<t:1715855605:R>
Solved by
<@1035556259417571408> (1035556259417571408)
Arey firse krdiye stats meh firse add ho jayega 😢
Koi baat nhi