ATAR Notes: Forum

VCE Stuff => VCE Science => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Chemistry => Topic started by: nacho on February 06, 2011, 06:33:34 pm

Title: Chemical Equation
Post by: nacho on February 06, 2011, 06:33:34 pm: How do I write the chemical equation for the reaction that takes place when aqueous Barium Hydroxide reacts with iron(III)chloride?
Is this an acid-base reaction? If so, what type?
How do i know if a substance is a base or an acid? i.e. is there any defining point which tells me a substance is willing to accept or donate protons?

Thanks.
Title: Re: Chemical Equation
Post by: pi on February 06, 2011, 06:37:27 pm: 2FeCl₃ + 3Ba(OH)₂ --> 2Fe(OH)₃ + 3BaCl₂

Its not acid-base, its a precipitation reaction (Fe(OH)₃ is the precipitate)
Title: Re: Chemical Equation
Post by: nacho on February 06, 2011, 06:44:58 pm: Did you use the solubility table when you did that?
Title: Re: Chemical Equation
Post by: pi on February 06, 2011, 06:49:35 pm: Quote from: nacho on February 06, 2011, 06:44:58 pm
Did you use the solubility table when you did that?

I have it memorised
Title: Re: Chemical Equation
Post by: nacho on February 06, 2011, 06:52:06 pm: Quote from: pi on February 06, 2011, 06:49:35 pm
Quote from: nacho on February 06, 2011, 06:44:58 pm
Did you use the solubility table when you did that?

I have it memorised
The rules, or the actual table?

Moderator action: removed real name, sorry for the inconvenience
Title: Re: Chemical Equation
Post by: david10d on February 06, 2011, 06:52:16 pm: Amazing.
Title: Re: Chemical Equation
Post by: pi on February 06, 2011, 06:52:52 pm: Quote from: nacho on February 06, 2011, 06:52:06 pm
Quote from: pi on February 06, 2011, 06:49:35 pm
Quote from: nacho on February 06, 2011, 06:44:58 pm
Did you use the solubility table when you did that?

I have it memorised
The rules, or the actual table?

Um... the rules and the table are the same...

Moderator action: removed real name, sorry for the inconvenience
Title: Re: Chemical Equation
Post by: nacho on February 06, 2011, 07:01:33 pm: Quote from: pi on February 06, 2011, 06:52:52 pm
Quote from: nacho on February 06, 2011, 06:52:06 pm
Quote from: pi on February 06, 2011, 06:49:35 pm
Quote from: nacho on February 06, 2011, 06:44:58 pm
Did you use the solubility table when you did that?

I have it memorised
The rules, or the actual table?

Um... the rules and the table are the same...
Oh, I was referring to "all nitrates, ammonium compounds and compounds of group 1 metals are soluble" rule
how long did it take you to memorise the solubility table..i wish vcaa would include it in the data-booklet to eliminate the rote learn factor..

Moderator action: removed real name, sorry for the inconvenience
Title: Re: Chemical Equation
Post by: pi on February 06, 2011, 07:04:55 pm: It seriously took me one chem exercise (from textbook) last year to get them all
Title: Re: Chemical Equation
Post by: Water on February 06, 2011, 07:07:16 pm: Quote from: nacho on February 06, 2011, 07:01:33 pm
Quote from: pi on February 06, 2011, 06:52:52 pm
Quote from: nacho on February 06, 2011, 06:52:06 pm
Quote from: pi on February 06, 2011, 06:49:35 pm
Quote from: nacho on February 06, 2011, 06:44:58 pm
Did you use the solubility table when you did that?

I have it memorised
The rules, or the actual table?

Um... the rules and the table are the same...
Oh, I was referring to "all nitrates, ammonium compounds and compounds of group 1 metals are soluble" rule
how long did it take you to memorise the solubility table..i wish vcaa would include it in the data-booklet to eliminate the rote learn factor..

Nacho, you could do so many exercises that it eventually becomes second nature to you? ;x

Generally, your intuition would be right LoL

Moderator action: removed real name, sorry for the inconvenience
Title: Re: Chemical Equation
Post by: tarek on February 06, 2011, 08:06:26 pm: Why would you memorise the solubility table when they give you it in the data book!?
Title: Re: Chemical Equation
Post by: pi on February 06, 2011, 08:07:28 pm: Quote from: tarek on February 06, 2011, 08:06:26 pm
Why would you memorise the solubility table when they give you it in the data book!?

Um... They don't.
Title: Re: Chemical Equation
Post by: tarek on February 06, 2011, 08:40:32 pm: pi my man can you link me to the chem data book, I haven't seen it yet!

Moderator action: removed real name, sorry for the inconvenience
Title: Re: Chemical Equation
Post by: iamtom on February 06, 2011, 08:41:32 pm: Chem students at MHS are told to memorise solubilities and valencies; most have valencies memorised by the end of year 10.

I still haven't memorised mine. I'm a bad student :P
Title: Re: Chemical Equation
Post by: iNerd on February 06, 2011, 08:43:03 pm: Quote from: iamtom on February 06, 2011, 08:41:32 pm
Chem students at MHS are told to memorise solubilities and valencies; most have valencies memorised by the end of year 10.

I still haven't memorised mine. I'm a bad student :P
*the end of year11
Title: Re: Chemical Equation
Post by: pi on February 06, 2011, 08:45:20 pm: Quote from: ATAR on February 06, 2011, 08:43:03 pm
Quote from: iamtom on February 06, 2011, 08:41:32 pm
Chem students at MHS are told to memorise solubilities and valencies; most have valencies memorised by the end of year 10.

I still haven't memorised mine. I'm a bad student :P
*the end of year11
no, year 10 (I had Mr James)

tarek, go here and click on '2008 Exam 1 Specifications and Sample exam', scroll down and it starts on around p20
Title: Re: Chemical Equation
Post by: tarek on February 06, 2011, 08:52:14 pm: champion, I don't know how to give karma but greatly appreciated!
Title: Re: Chemical Equation
Post by: iamtom on February 06, 2011, 09:27:31 pm: Quote from: pi on February 06, 2011, 08:45:20 pm
Quote from: ATAR on February 06, 2011, 08:43:03 pm
Quote from: iamtom on February 06, 2011, 08:41:32 pm
Chem students at MHS are told to memorise solubilities and valencies; most have valencies memorised by the end of year 10.

I still haven't memorised mine. I'm a bad student :P
*the end of year11
no, year 10 (I had Mr James)

tarek, go here and click on '2008 Exam 1 Specifications and Sample exam', scroll down and it starts on around p20

Goodey told me to 'get my hands on that'. Thanks.

And yeah, end of year 10 for valencies. End of year 11 for solubility.

Moderator action: removed real name, sorry for the inconvenience