Is anyone good at chemistry???

[punks united]

i need help on my homework!!!


Thanks,

Nikki

[Leaver]

me me me!!!!!!!!! :D

[Leaver]

so :dozey:

[punks united]

really...?

Okay, i did a lab on mass and mole relationships in a chemical reaction and have to fid the percent error.

We used NaCl and NaHCO_3

[punks united]

it is for the experimental mole ratio

[Leaver]

then

[punks united]

?

The theoretical molee ratio is 1:1

and i got the experimental to be .37 mol NACl and .38 mol NaHCO_3

[Leaver]

what about the theoric? :stunned:

[punks united]

i got 1:1 ratio.....for the equation NaHCo_3+HCl(aq) >>NaCl+Co_2+H_2_O


and the simplest whole number ratio that i got for .37 and .38 is 1:1 but then that means that my percent error is o%

[Leaver]

why there's no oxygen in the left part of the equation :stunned:

[punks united]

i fixed it...now there is :) sorry

[Leaver]

have you the molair masse(don't know how it is call in english)

[punks united]

for which substances?

[punks united]

for NaHCo_3 it is 83.996
and for NaCl it is 58.433

[Leaver]

so for NaHCO_3 and hcl

[musiclover]

:rolleyes:

[punks united]

hcl..u don't need the mass cuz u are finding the ratio between NaHCO_3 and NCl

[Leaver]

do you got the masse?

[punks united]

it would help u that i had 3.1 g of NaHCO_3 and 2.2 g of NCl

[Leaver]

do you they ask nomber of mole?

[punks united]

yes and then you find the simplest whole number ratio between them.

[Leaver]

do you know how to find it?

[punks united]

you divide the number of grams by molar mass to get the number of moles

[punks united]

i think i got the answer...thanks for helping me Lea :)

[Leaver]

and what does it give?

[fifi]

:stunned: *frightened by how clever Nikki and Léa are* :lol:

[Leaver]

tisss i can't explain what i want nikki to understand :(

[punks united]

i got a 0% experiment mole ratio error....you get this by finding the difference between the two ratios and dividing by the theoretical and then multiply it by 100

[Leaver]

(theo-exp)/theo
*100?

[soleil]

Wow, this brings me back to the good 'ol days... :stunned:

[musiclover]

i don't see what the problem is. if you don't have any error, that's supposed to be the best possible world! :idea2:

plus, as you said, the difference was 0.37 to 0.38...

[Angel at his table]

I had chemistry last 3 years - I HATED IT! :angry:
I'm sorry - if there is someone who likes chemistry, but I had to say it :)

[musiclover]

<<< is a chemical engineer
:lol:

[fifi]

I prefer biology! :idea2:

[Angel at his table]

I prefer history :kiss:

[soleil]

<<< is a chemical engineer
:lol:

Oh, you're a chemical engineer?

I never knew that..

[musiclover]

sure am. and why would you know...unless you asked and i told u... :cool:

i prefer history too. and politics/current affairs...

[soleil]

i knew you were an engineer, just not a chemical one. that's cool. :cool: sounds like it's hard.

history, i'm not so much into. :/

[Angel at his table]

Oh, you're a chemical engineer? I don´t understand anything in chemistry - everything is so complicated...
History is really good - I want to study it just this year(after my graduation in may)...

[musiclover]

you're really from Czech republic? land of Vaslav Havel?!

umm...history is fun to discover and rediscover...the textbooks don't tell the whole truth...ever! that's what you should start from :-)


and yeah...chemical engineer...it's okay. it is hard, but i've seen people persevere and do really really well in it!

[soleil]

how are you liking it?

[Angel at his table]

Thank for your advise ;)
And -yes - I'm really from Czech republic, but we have another president now - Václav Klaus. I think that Václav Havel was better

[musiclover]

actually i'm working as an environmental engineer in the chemical/refineries industry...hahaha so i don't really use my chemical engineering functional skills, but i do use my chemical engineering knowledge to deduce info about environmental effects of certain chemical/petro refinery plant operations... it's kinda like "applied" chemical engineering, just like engineering is "applied science" :lol:

i'm liking it! but it's too much tension! :stunned: specially when my decision leads to literally thounsands or even millions of dollars worth of actions...

[soleil]

oh wow. :stunned: that's does sound stressful.. but at least you know that what you do is important/functional/meaningful..

[musiclover]

nah...most of the time, it's managerial paper shuffling! :lol: :lol:

[rf_ucsd]

Oh, you're a chemical engineer? I don´t understand anything in chemistry - everything is so complicated...
History is really good - I want to study it just this year(after my graduation in may)...

Home to the world's best ice hockey players.

I'm sure that won't be popular among our Canadian posters ... and it's not conclusive.

[Angel at his table]

Yeah. wow :o

[musiclover]

Vaclav HAvel just recently got a Gandhi Peace Prize in New Delhi...

good luck with your history studies! and hope u enjoy it!

[punks united]

Hey music clover...i was just freaked out that i actually had no percent error and was afraid my teacher would think that i cheated or somethin' lol

[StupidIntel]

So... if anyone ever wants to help me with quantum mechanics... just let me know!

[punks united]

oooooooo fun...lol..jk

me and physics don't mesh well

[Angel at his table]

Thank you, musiclover... Good luck with your work :)

And for rf_ucsd: our ice hockey players are very good, you can see them soon: In april and in may:in the Czech republic is world championship in ice hockey :cool: (I don't know if I wrote it right :huh: )

About quantum mechanics? Oh, for me - It's something like chemistry... :confused:

[musiclover]

quantum mechanics is really in a realm called "Physical Chemistry"...so yeah, it's a mix of the two sciences! :smug:

[Angel at his table]

Uhhh... I heard something about quantum mechanics last year - in my physics's lesson (because I'm studying grammar school with universal intention - I donť know If you understand, in my country it's called gymnázium. This school prepares students for study at university). Thank God - this year I could choose If I want to learn something more about physics and chemistry :confused: or about history and social science! :wideeyed:
So I´m sure that you know what I chosen :) :)

[musiclover]

yes, I know a little about gymnasium...

it's great that you get to choose what to study right in the high school level. when i did my high school, i had to take all the classes, no matter what. in india, we had to take 10 subjects every semester/year: all 3 sciences (biology, physics, chemistry), maths, civics (government studies), 3 languages (hindi, local language, english), a class called 'moral studies', and geography. no exception...every student had to take these classes...! :dozey:

[musiclover]

ohhh..i forgot world history and world geography...actually, those were the classes that you took as you progress through school...first local history, then next year world history, etc..

[musiclover]

then when i came to u.s., they were surprised that i already knew english and i passed out of their world geography and world history classes by taking their tests... :rolleyes: ohhh and they put me in geometry 'cuz they didn't think i should be allowed to take higher maths, and it was such a boring class 'cuz i'd already learned it all before... :rolleyes: that made me dumb, though...i took it too easy...and now i'm sooo bad with math! :confused: :stunned:

:lol:

[Angel at his table]

Math... I still have it... And it's grhhhhhhh :angry:
I prefer humanities. Before two years I had Latin and now - I worry that I forgot everything :/
It's true that men are better in physics, math, chemistry... But why? It's in our genetic equipment? :huh: :)
And the languages? Now I'm having mother tongue(czech); german (8 years :stunned: ) and english - only 4 years.... :)

[dionisio]

8 jahre deutsch :stunned:

[StupidIntel]

yes, I know a little about gymnasium...

it's great that you get to choose what to study right in the high school level. when i did my high school, i had to take all the classes, no matter what. in india, we had to take 10 subjects every semester/year: all 3 sciences (biology, physics, chemistry), maths, civics (government studies), 3 languages (hindi, local language, english), a class called 'moral studies', and geography. no exception...every student had to take these classes...! :dozey:

:stunned: I feel cheated.

[Angel at his table]

Ja, ja, Deutsch :) Ich glaube, dass es gut ist, weil Die Tschechische Republik an die BRD grenzt, so ich möchte das Abitur ind Deutsch ablegen ;)

[dionisio]

:stunned: kannst du das!? boah das is ne sehr gute idee, weil unser Abitur überall...fast überall :rolleyes: ...geschätzt wird!! :smug:

[Angel at his table]

Heute möchten alle Studenten nur English machen. Besser ist mehr Sprache zu lernen!!!!! :) Französisch ist sehr schön aber... ich habe keine Zeit :confused:

[Leaver]

quelle horreur :stunned:

[StupidIntel]

:stunned:

[Angel at his table]

Aber jetzt habe ich nicht verstanden :huh: :)

[Leaver]

argh :stunned:

[StupidIntel]

Ich weiß, was weitergeht nicht. Ich spreche Ihre Sprache nicht.

[Leaver]

oh my god
*heart attak* :confused:

[Angel at his table]

Mein Muttersprache ist schwerer :)
So können Sie lieber in English sprechen??? :D

[cristiane]

:lol:

[MrsBerry]

Criiiiiiiis ?

[musiclover]

why do you feel cheated, SI? :stunned:

and :stunned: :o @ all the german in here!

[Leaver]

clea'r!!!!!!!

[Angel at his table]

The german - it was a little german course :D :D

[dionisio]

czech is too diff... :stunned:

[StupidIntel]

why do you feel cheated, SI?

haha... your education was so much better than mine.

[rf_ucsd]

WARNING: Very bad joke coming.

I'm good at chemistry, but not the kind you all are talking about.

[Angel at his table]

czech is too diff... :stunned:



:D But very nice :wink3:

[dionisio]

:stunned: :/

[musiclover]

Ivona, should I start taking Czech lessons? :wink3: :D



and ummm Robert...is that your way of telling the girls in here that you're a prof of "physical" chemistry? :lol: :lol:

[Leaver]

robert....wmahahahahahahahahahahahahaha :lol: :lol:

[Angel at his table]

[quote="musiclover"]Ivona, should I start taking Czech lessons? :wink3: :D



Yes :kiss: ;)

[Leaver]

:rolleyes:

[musiclover]

no rolleyessss , si'il tout plait, mademoiselle lea! :D


ummm Ivona...Czech....never thought of learning that language until now! :wink3: :lol:

[Leaver]

it's not robert it's richard :lol:

[musiclover]

oh..damn..i keep calling himi robert...okay, Richard it is from now on...if i remember it correctly! :D

[Leaver]

love your sig
evanescence my immortal :blush:

[Angel at his table]

Nikdy bych neřekla, že Američan bude mít chut' učit se češtinu :)

[musiclover]

you just noticed it now? :stunned:







:kiss: back @ Ivona
you can teach me some Czech...by my teacher, i'll be your pupil! :sneaky: :lol:

[Leaver]

:confused:

[soleil]

woah, czech. :stunned:

[musiclover]

Nikdy bych neřekla, že Američan bude mít chut' učit se češtinu :)

whoaaaa! :o i just went back and noticed this, Ivona! wow! what does it all mean? :huh:

thanks for posting! :kiss:
:)

[Leaver]

:confused:

[gvargas]

yah I'm pretty much bad at chemistry! :)

[soleil]

chemistry :wink3: :wink3: :wink3:

[musiclover]

:dozey:

[soleil]

you know those koreans found out a way to clone a human embryo

[gvargas]

wait were we talking about the subject in school chemistry?...i didn't even bother to read the first post. :lol:

[soleil]

yes.

[Angel at his table]

Nikdy bych neřekla, že Američan bude mít chut' učit se češtinu :)

whoaaaa! :o i just went back and noticed this, Ivona! wow! what does it all mean? :huh:

thanks for posting! :kiss:
:)


It means: I didn't think that an american boy wants to learn czech :)

[musiclover]

:lol: :lol: good one! :-)

i did get the part about "American" :lol:

[Leaver]

:rolleyes:

[musiclover]

lea's eyeballs coming popping loose! :lol: :lol:

[Leaver]

:stunned:

[musiclover]

:lol: :lol: :sneaky: someone else too said that to u earlier..i think it was hicksy! :sneaky:

[Leaver]

really? :angry:
hichsy no sport for you tonight :sneaky:

[Angel at his table]

:lol: :lol: good one! :-)

i did get the part about "American" :lol:


:huh:

[musiclover]

oh don't worry about that...i was just being a crazy guy! :-)

:kiss:

isn't it very late over there? go to bed, ivona! :confused:

i'm gone now too!

[Angel at his table]

:angry: :angry: :angry: :angry:
:D :D :D :D :D :D :D :D

[StupidIntel]

:huh: :huh: :huh: :huh: :huh: :huh: ;) ;) ;) :P :P :P :( :( :( :wink3: :wink3: :wink3: :confused:

[rf_ucsd]

Thank you, musiclover... Good luck with your work :)

And for rf_ucsd: our ice hockey players are very good, you can see them soon: In april and in may:in the Czech republic is world championship in ice hockey :cool: (I don't know if I wrote it right :huh: )

About quantum mechanics? Oh, for me - It's something like chemistry... :confused:

I get to see your ice hockey players every night playing in the NHL. My favorite Czech player is probably Patrick Elias.

[Angel at his table]

oh don't worry about that...i was just being a crazy guy! :-)

:kiss:

isn't it very late over there? go to bed, ivona! :confused:

i'm gone now too!


Go to bed? You are like my father :lol:

[musiclover]

:lol: :lol: yeah...come to think of it, that did sound like it... :dozey: i need a break! :idea2:

[Angel at his table]

He, he - it's only your problem :lol: :lol: :lol: :lol:

[musiclover]

yep...so now i'm going to go. :-)

byeeee!! and good night to ya!

[Angel at his table]

Good night :snore:

[Leaver]

musiclover wrote:
oh don't worry about that...i was just being a crazy guy! :-)



isn't it very late over there? go to bed, ivona!

i'm gone now too!



Go to bed? You are like my father

hahaha :lol:

[Angel at his table]

Thank you, musiclover... Good luck with your work :)

And for rf_ucsd: our ice hockey players are very good, you can see them soon: In april and in may:in the Czech republic is world championship in ice hockey :cool: (I don't know if I wrote it right :huh: )

About quantum mechanics? Oh, for me - It's something like chemistry... :confused:

I get to see your ice hockey players every night playing in the NHL. My favorite Czech player is probably Patrick Elias.

Patrik is very good, he's from a small village near my town :)
I love Petr Sykora from Anaheim(he's soooo nice :D :lol: )
Very very good is Peter Forsberg from Colorado(he isn't Czech, I know, but he really knows what to do with hockey - stick and puck :smug: )

[Leaver]

:stunned:

[Angel at his table]

:cool:

[Leaver]

i'm not into hockey :confused:

[Angel at his table]

Never mind :dozey:

[Leaver]

:confused:

[CityandColour]

I don't take chemistry.

[Leaver]

you should try :smug:

[CityandColour]

Fuck that.

[Leaver]

you should try to be polite too :dozey:

[Angel at his table]

:rolleyes: :)

[Leaver]

:D

[CityandColour]

I am polite, bisnitch. :P

[musiclover]

oh god...anything...i'll take anything, but that fucking snoop dogg talkk!! :angry: :rolleyes:

[Leaver]

it's brian :dozey: