Question

how many acidic H+ ion is given by H3BO3 in aqueous solution??

Answer 1

boric acid gives out only one H+ ion as it is more basic will hydrolysis the water and produces one proton
B(OH)3 + 2 H2O \[\rightarrow\] B(OH)4− + H3O

Answer 2

chmvijay can u tell me due to which phenomenon instead of loosing its hydrogen it gain OH of water ..

Answer 3

the molecule will be more stable its octet state!!!all the boron compounds (BX3) are having only 6 valency electrons in it !!hence it can follow octen rule by ttaking alone pair of electron from another base !!!!hence react with lewis base to produce four bonds and satisfies octane rule!!!!!

Answer 4

H3BO3 is NOT an arrhenius acid. It is a lewis acid whose basicity is 1. Considering its planar Hydrogen bonded stucture it is impossible for it to donate any H.It is an acid because Boron is electron deficient like BF3.

Answer 5

i don't think it releases any H+ in solution. it would just form a complex with water. I think the answer would be 0.(Just like BX3 it can't release any H+.).

Answer 6

yea even i mesage too @chmvijay to make correctrion i think he forgot..:) and here B had vaccant p-orbital so it take OH- ion from water and H+ remain in it so we say it release 1 H+ ion

Answer 7

yaaa we never told boric acid a bronsted acid !!!!we just told that when it react with water will give rise to proton!!!!it is lewis acid only!!!!!!!u can see i my conversation i have not told it anymore bronsted acid!!!!

Answer 8

but u said this
"hence react with lewis base to produce four bonds and satisfies octane rule!!!!!"
dont think we are objecting but want u to corret ans as other users may also have dis doubt so..

Answer 9

always lewis acid reacts with lewis base!!!! it mean