Question

Which molecule will form a solution with a very low pH?

H3PO4

H2O

NaOH

KOH

Answer 1

@matt101 , @Apocalyptic_Ash

Answer 2

A low pH means very acidic. Very acidic means lots of hydronium ions. Which molecule will produce the most hydronium ions once dissolved?

Answer 3

Well, H2O would be a nutral pH.

Answer 4

Well, I believe that H3PO4 is the correct answer. @matt101 , @Apocalyptic_Ash

Answer 5

I believe it may be the correct answer

Answer 6

I was thinking that too. :) Let me check my chart.

Answer 7

Then you'd be right!

Water is neutral as @Apocalyptic_Ash says, so it's not likely to form a significant amount of hydronium or hydroxide ions. NaOH and KOH are both bases, because they dissociate in water to produce hydroxide ions.

Answer 8

So, H3PO4 is correct? @matt101

Answer 9

Exactly! :) @matt101 @FEARLESS_JOCEY

Answer 10

Yes. It's correct.

Answer 11

Thanks! :)

Answer 12

Glad to help. :)