Textbook Answer wrong or..?

[Stick]

That wasn't very nice, FlorianK. MonsieurHulot has only done Year 11 Chemistry and isn't as competent as you are just yet. There was no need to use the words "stupid" and "winning". He/she (sorry) didn't say anything mean to you.

[FlorianK]

I don't know how it came across to you, but when somebody disagrees with you it is automatically an argument meaning if somebody got the correct answer there is a winner, in this case me.
Secondly I used the word "stupid" since in my ,and many other people's, opinion copying stuff of wikipedia, or any other website, without thinking and cross-checking yourself is definetly stupid and should be ,in all cases, tried to be avoided.

Additionally, being a down-voter of my post, you obviously want me to delete my response, meaning that you want the rest of those reading the question still thinking that the answer is D, very nice of you towards the rest of the community. I guess knowing that your study score is a ranking you want the rest to have a disadvantage against you .
I know you didn't meant it that way, but I picked apart your action in the way you tried to do with mine.

[Stick]

I think you're reading into this way too much, FlorianK. There was no argument, first of all, and MonsieurHulot made a mistake. He/she (sorry) didn't deserve that and that's why I down-voted you - not because I don't want people to get the right answer. All I'm saying is that you could've been more nice about it. He/she (sorry) will probably be a little embarrassed about it when he/she (sorry) finds out anyway.

[Lasercookie]

Going to have to agree with Stick here, this is just a thread discussing a chemistry question, winning and losing doesn't really come into it. There's no need to be passive-aggressive.

That said I assume FlorianK had the best of intentions, so I'm hoping we can just ignore this and move back to discussing Chemistry. I'd rather not have to lock this thread.

[paulsterio]

Can everyone just be a little less picky? I hate it when people are picky, it's one of the bad side-effects of being too politically correct sometimes, that we can't just accept that sometimes people say things which can be read as mean, but had no such intention.

I think this is the case here, Florian's just saying something that's pretty rational, that it's stupid to copy something from another source and not understand it and he was probably having a bit of a joke with the "winning" stuff - there was nothing he said that was really even that bad.

Stick - I think you're reading into what Florian did too much, he merely stated what he believed - he never called anyone else stupid, he called their actions stupid and he backed up why he felt that way, I found that was quite rational. He really didn't do anything to warrant a discussion on his motives and actions. I'm sure you've called other people's actions stupid before - I know I have, if somebody did something stupid, I would say "why would you do that, it's stupid" or "that was such a stupid thing to do" - there's nothing wrong with such remarks.

Maybe we should just stop being so picky, generally when people say something that appears mean, they don't mean it that way at all, so don't read into it so much. Most importantly, be resilient and don't take offence, the more offended you are by things, the more difficult your life will be.

Anyways, yeah, let's get back to chemistry as Laseredd says.

[MonsieurHulot]

Well stupid copying without thinking yourself from Wikipedia made you loose, meaning I won.
I will now prove to you that p(density)=m/V=MP/RT
normal stoichiometry formula is m=n*M
density formula is p=MP/RT
ideal gas equation is P=nRT/V

Sub in ideal gas equation into density formula and you get
p=MnRT/(RTV)=Mn/V=m/V

I like winning

I wasn't trying to make it a competition. I apologise if I led anyone astray by copying from Wikipedia.
Could you please explain why the answer is B?

[barydos]

As the thread starter, I demand everyone to stop fighting LOL nah jokes
umm

Answer is B because we're not certain of the temperature (it's not stated in the question).
And for gases, density is defined by p = MP/RT , as you can see temperature is one of the variables. VOILA density cannot be determined from the given info!

^ you don't need to apologise, I personally think Wikipedia is very legit in the grand scheme of things LOL

ANYWAY THANKS FOR EVERYONE'S INPUT

[FlorianK]

Answer is B because we're not certain of the temperature (it's not stated in the question).
And for gases, density is defined by p = MP/RT , as you can see temperature is one of the variables. VOILA density cannot be determined from the given info!

^ you don't need to apologise, I personally think Wikipedia is very legit in the grand scheme of things LOL

Yes, Wikipedia is correct that for gases p=MP/RT
but MP/RT=m/V as you can see in one of my comments.

The answer is hence D. A textbook can be wrong.

I will now calculate for you the density by using the given information.

normal stoichiometry formula is m=n*M
density formula is p=MP/(RT)
ideal gas equation is P=nRT/V

now you replace the P in the density formula by nRT/V you get:
p=MnRT/(RTV)=nM/V=m/V=0.01/8=1.25*10^-3 kg/m³