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Chemistry questions....


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#1 Heretic Monkey

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Posted 22 September 2005 - 09:28 PM

Alright, got some homework to do for chem, and i have no idea how to figure it out......:

a. If you had already removed Ag1+, Hg22+, and Pb2+ by adding HCl, which of the following ions could you separate (as a group) with H2SO4? (choose all that apply)

Cu2+
K1+
Al3+
Fe3+
Ba2+
NH41+
Sr2+
Ca2+

b. If you had already removed Ag1+, Hg22+, and Pb2+ by adding HCl, which of the following ions could you separate (as a group) with H2CO3? (choose all that apply)


Mg2+
K1+
Fe3+
Sr2+
Na1+
Al3+
NH41+
Ca2+

c. If you had already removed Ag1+, Hg22+, and Pb2+ by adding HCl, which of the following ions could you separate (as a group) with LiOH? (choose all that apply)

Na1+
Mg2+
K1+
NH41+
Fe3+
Al3+
Ca2+
Sr2+

If you can figure it out, please tell me :-D

Edited by Heretic Monkey, 22 September 2005 - 09:28 PM.


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#2 jgweed

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Posted 22 September 2005 - 09:31 PM

Don't look at me, I got all my science from Aristotle.
Sorry I can't help you.
John
Whereof one cannot speak, thereof one should be silent.

#3 yano

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Posted 22 September 2005 - 09:34 PM

Don't look at me, I got all my science from Aristotle.
Sorry I can't help you.
John

:thumbsup: :flowers:

Then that explains your answer to "Why is 2+2=4"


Sorry Heretic Monkey.
Never had chem.

Edited by yanowhiz, 22 September 2005 - 09:37 PM.


#4 ddeerrff

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Posted 22 September 2005 - 11:14 PM

a. If you had already removed Ag1+, Hg22+, and Pb2+ by adding HCl, which of the following ions could you separate (as a group) with H2SO4? (choose all that apply)

Cu2+
K1+
Al3+
Fe3+
Ba2+
NH41+
Sr2+
Ca2+

I assume you are looking for a precipitate.

Is CuSO4 soluble in water?
K2SO4 ?
Al2(SO4)3 ?
Fe2(SO4)3 ?
ect?
Derfram
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#5 ddeerrff

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Posted 23 September 2005 - 09:18 AM

Solubility table at bottom of page here.
Derfram
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#6 Heretic Monkey

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Posted 23 September 2005 - 01:08 PM

Thanx a lot man, i should be able to figure it out from there.....

Odd how they expect you to figure crap out, and give you 3 different chemistry books, yet none of them contain the information needed to solve the problem........ well, welcome to college i guess......

#7 yano

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Posted 23 September 2005 - 04:20 PM

Thanx a lot man, i should be able to figure it out from there.....

Odd how they expect you to figure crap out, and give you 3 different chemistry books, yet none of them contain the information needed to solve the problem........ well, welcome to college i guess......

Your in college? Sweet. :thumbsup:

Congratulations. :flowers: :trumpet:


So is this your first year I take it? :inlove:

#8 deerslayer

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Posted 23 September 2005 - 04:30 PM

I'm getting chemistry out of the way this year. :thumbsup:
But man it really sucks!!! :flowers:

Man i hate it!!!

but you got to laugh to keep from crying. :trumpet: (i'm trying to laugh while crying! lol)

That's my motto. :inlove:
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#9 yano

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Posted 23 September 2005 - 08:09 PM

Yea I'm taking Chem next year (or physics). Cause the stupid school gave me government this year (which is usually a senior class), so I got to take a science while I'm a senior.

#10 Heretic Monkey

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Posted 25 September 2005 - 05:37 PM

Thanx a lot man, i should be able to figure it out from there.....

Odd how they expect you to figure crap out, and give you 3 different chemistry books, yet none of them contain the information needed to solve the problem........ well, welcome to college i guess......

Your in college? Sweet. :thumbsup:

Congratulations. :flowers: :trumpet:


So is this your first year I take it? :inlove:

Yeah, i go to NCSU (North Carolina State University), and i am indeed a freshman. Chem 101 is required..... and i despise it...... but i'm doing ok, so as long as i get a b or a, i'll be happy.
:cool:

#11 deerslayer

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Posted 25 September 2005 - 06:55 PM

A -B or an -A would be flippin fantastic! :thumbsup: lol
nah, its not that bad....
When I was born, I was so surprised I didn't talk for a year and a half!!!
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#12 ddeerrff

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Posted 25 September 2005 - 11:51 PM

Come on guys. Inorganic chemistry is FUN. Probably one of the most fun classes I had. After 35+ years, I still remember those days in the chem lab fondly.......
Derfram
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#13 deerslayer

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Posted 27 September 2005 - 10:21 AM

You are right ddeerrff, Chem isn't that bad. I do like the expirements. :thumbsup:

do you teach it?
When I was born, I was so surprised I didn't talk for a year and a half!!!
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