Question

A solution is measured to have a pH of 2.3. What is most likely also true about the solution?

It has a low hydroxide ion concentration.

It has a low hydronium ion concentration.

It is neutral.

It has no H2O molecules.

Answer 1

@Ciarán95 @Garadon_Shagan

Answer 2

i have no clue T,T

Answer 3

A solution with a pH of between 0 - 7 is considered to be acidic, with pH = 7 being neutral. A pH of 2.3 is quite acidic, so such solutions would dissociate to produce a relatively high concentration of H+ ions in solution (e.g: hydrochloric acid solution, HCl, will dissociate to produce H+ and Cl- ions). If we assume that the solution is aqueous (i.e. dissolved in water) then, of course, there will be some H20 molecules in solution. The H+ can interact with the H2Os present to form the H30+ hydronium ion in solution. It is only basic solutions which dissociate to produce OH- (hydroxide) ions (e.g: NaOH). Hope that helps!

Answer 4

so either A or B?

Answer 5

its an Acid then

Answer 6

As it's an acid, there will be a low OH- concentration (hydroxide ion) in solution. If there is a high H+ ion concentration, as comes with an acid, then lots of H3O+ molecules (hydronium ion) can be formed in an aqueous solution. So, there will be a high concentration of these floating around.

Answer 7

so A :D