Question

Anyone know the standard physical state of carbonate (CO3)?

Answer 1

aqueous? CO3^2-(aq)

Answer 2

@cuanchi I don't know. The total compound is this:\[SrCO_{3}\]

Answer 3

I know Strontium is in solid form and Carbon is solid, but Oxygen is a gas.
Isn't carbonate a solid normally though?

Answer 4

in what topic are you talking about? as a compound in the nature?
Strontium carbonate is a white, odorless, tasteless powder

Answer 5

Naturally occurring state, I suppose.

Answer 6

https://en.wikipedia.org/wiki/Strontium_carbonate

Answer 7

Also by solubility rules, most carbonates (unless with an alkali-metal) are insoluble

Answer 8

Er... maybe I'm not comprehending the problem. I'll get back to you guys on this...

Answer 9

you gotta specify the temperature and conditions tho

Answer 10

strontium carbonate is solid at room temp

Answer 11

@coolor @Luigi0210 @cuanchi it is this: http://prntscr.com/cwjcb3

Answer 12

The "standard state of a substance at temperature T" is the most stable state of that substance under pressure \(P=10^5\) Pa, at temperature T.

Water standard state at 300 K is liquid
Water standard state at 400 K is vapour
Water standard state at 250 K is ice-Ih
https://en.wikipedia.org/wiki/Ice_Ih

Carbon standard state at 300K is graphite (not diamond)

Iron standard state at 300 K is solid alpha-iron (CCC)

Strontium carbonate standard state at 300 K is solid (rhombic structure)

Answer 13

If your strontium carbonate is in solution, the standard state is slightly more complicated to define. From English Wikipedia:
_______________
For a substance in solution (solute), the standard state is the hypothetical state it would have at the standard state molality or amount concentration but exhibiting infinite-dilution behavior. The reason for this unusual definition is that the behavior of a solute at the limit of infinite dilution is described by equations which are very similar to the equations for ideal gases. Hence taking infinite-dilution behavior to be the standard state allows corrections for non-ideality to be made consistently for all the different solutes. Standard state molality is 1 mol kg−1, while standard state amount concentration is 1 mol dm−3.
_________________

Answer 14

your equation is incorrect is becuase there is no CO3(l), it should be \[Sr ^{2+}\left( aq \right)+CO _{3}^{2-}\left( aq \right)=SrCO _{3}\left( s \right)\]

Answer 15

this euqation tells you that if you have Sr ion and carbonate ion in solution, you will get SrCO3 solid

Answer 16

caozeyuan is correct: strontium carbonate being almost insoluble, the second part of my answer does not hold in this case.
It would be valid, though, for solutes such as NaCl for instance.

Answer 17

the answer was to split up the \(CO_{3}\) guys, \((aq)\) is still wrong :\

Answer 18

*unbalanced equation:\[Sr(s)+C(s)+O_{2}(g)\rightarrow SrCO_{3}\]