Question

"Write the notation appropriate for each substance in an aqueous ionic equation."
(basically split into ions/components and determine each one's state of matter, then use this to figure out what kind of electrolyte the original compound is)

Answer 1

a. KCN
b. \(PbCl_{2}\)
c. HBr
d. CsOH
e. \(NH_{3}\)
f. \(O_{2}\)
g. \(H_{2}CO_{3}\)
h. \(Al_{2}(SO_{4})_{3}\)
i. \(Zn(OH)_{2}\)
j. \(H_{2}SO_{4}\)
k. \(CH_{3}CH_{2}OH\)
L. \(H_{2}O\)

Answer 2

my professor said:
(b) is Strong electrolyte,
(c) is \(H^{+}(aq)+Br^{-}(aq)\)
(e) is \(NH_{4}^{+}(aq)+OH^{-}(aq)\)
(g) was \(H_{2}O(l)+CO_{2}(g)\)

Answer 3

b) strong

Answer 4

yep, how to split up though?

Answer 5

it is poorly soluble according to my solubility list hahah
makes me think is either Weak or Non

Answer 6

but strong in molten state

Answer 7

eh, they only ask for solution state

Answer 8

then go with weak electrolyte
Pb+2 + Cl -

Answer 9

it can ionize to an extent

Answer 10

is (aq)?
wait no my professor say strong I will use strong

Answer 11

XD

Answer 12

is aqueous ions?

Answer 13

yea

Answer 14

okay!
and (a) is K+ and CN- aqueous ions?

Answer 15

yea

Answer 16

alright... then it is strong electrolyte?

Answer 17

is potassium cyanide, I think is strong acid

Answer 18

strong electrolyte

Answer 19

yay! :D

ok, and (c) I have the ions already... bromide is strong ?

Answer 20

HBr is a strong electrolyte

Answer 21

:D

Answer 22

ok, the next one cesium hydroxide. (d)
uhh... is non soluble according to my list

Answer 23

idk how to split this up :|

Answer 24

strong electrolyte

Answer 25

ok
it says "cesium reacts with water to form cesium hydroxide and hydrogen gas H2"

Answer 26

Yes, CsOH is a strong base therefore a strong electrolyte. Full ionization in H2O.

Answer 27

my solubility worksheet says for hydroxides: "non soluble except group IA, NH4+ (ammonium), Ba2+, Sr2+, Ca2+"

Answer 28

so how does it ionize if nonsoluble o_o

Answer 29

All the strong bases have an OH and they all completely dissolve in H2O.
For example
NaOH, LiOH,and KOH are just a few.

Answer 30

ergh, a mass tag just summoned us all

Answer 31

i think i dodged it :P

Answer 32

xD

Answer 33

I don't get how CsOH splits up when it says insoluble ??

Answer 34

I mean if you don't believe us you could look up the Ksp for CsOH dissolving into H2O.

Answer 35

Take a look at this Ksp/Ka chart. Use the command ctrl+f and type "CsOH"

Answer 36

alkali cations which are soluble in water :-
Li+,Na+,K+,Rb+,Cs+,Fr+

Answer 37

http://centralhighchem.com/AP_Chem_2nd/DownloadCenter_files/ka%20chart.pdf

Answer 38

no, I believe you, I don't know why I have a worksheet telling me it's insoluble

Answer 39

although that is a very useful site thanks ☺