Indicators again, don't know if I should make a new one... (1 Viewer)

[Dreamerish*~]

just really want to know, exactly which indicators do we need to know about?
with the indicators, do we have to know about the ranges for all of them? because if we do, then there would be a whole lot... and numbers are CONFUSING!!!!

 

[currysauce]

Ok you need to know the indicators and their respective ranges. It'll come with time, but the syllabus specifies the following indicators.

Indicator, pH range (colour in range), Used for?

-Litmus, 5.5-8.0, purple, Distinguishing between acids and bases

-bromothymol blue, 6.0-7.7, green, Distinguishing between acids and bases

-methyl orange, 3.1-4.4, orange, Distinguishing between levels of acidity

-phenolphtalein, 8.2-10.0, pink, Distinguishing between levels of alkalinity

 

[Dreamerish*~]

Ok you need to know the indicators and their respective ranges. It'll come with time, but the syllabus specifies the following indicators.

Indicator, pH range (colour in range), Used for?

-Litmus, 5.5-8.0, purple, Distinguishing between acids and bases

-bromothymol blue, 6.0-7.7, green, Distinguishing between acids and bases

-methyl orange, 3.1-4.4, orange, Distinguishing between levels of acidity

-phenolphtalein, 8.2-10.0, pink, Distinguishing between levels of alkalinity

yes i know those 4
you're sure that it's JUST those 4?

oh and... is there anything wrong with this equation:

H₂SO_4(aq) + NH_4(aq) --> NH₄SO_3(aq) + H₂O_(l) ?

 

[thunderdax]

oh and... is there anything wrong with this equation:

H₂SO_4(aq) + NH_4(aq) --> NH₄SO_3(aq) + H₂O_(l) ?

Yeah, the problem is that NH₄ has a charge of +1 and therefore can't exist by its own as you have put

 

[currysauce]

why can't that ion exist on its own in solution?

 

[thunderdax]

OK, it can exist, but not without a + charge on it

 

[Dreamerish*~]

why can't that ion exist on its own in solution?

oh my god
99% physics. not that i do physics. but OH MY GOD.

 

[currysauce]

twas a fluke LOL

i'm actually more stoked about my chem mark!! highest i've ever gotten

 

[Dreamerish*~]

twas a fluke LOL

i'm actually more stoked about my chem mark!! highest i've ever gotten

congratulations

nnneeerrrrrdddd!!!!!

 

[currysauce]

hahahhaha shut up

i challenge you to a dual

 

[withoutaface]

These three should do you:
Litmus ~7.0
Methyl Orange ~3.0
Phenolphtalein ~8-9.0