We have to remember that to argue that something is an ext acidic due to the fact that it produces much more hydronium ion in systems or the it is because of a lower pKa, when absolutely true, carry out not price the OP"s question of "WHY".

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We must remember the to argue that something is more acidic due to the fact that it produces much more hydronium ion in equipment or the it is due to a lower pKa, while absolutely true, execute not answer the OP"s concern of "WHY".
Of course, however if you tell me it"s not a homework, I can answer that question too
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If you usage the Bronsted-Lowry definition, you can say the the conjugate bases of both molecules space OH- and also SH-. As oxygen is an ext electronegative than sulfur, the will entice electrons more than sulfur does. This means that oxygen will be charged an ext than sulfur, and it will desire to get a proton an ext than sulfur. Hence, OH- (hydroxide) is a stronger base 보다 SH- (hydrsulfide), which implies that H2S is a stronger acid 보다 H2O. This additionally holds through the Lewis an interpretation of one acid.
If you usage the Bronsted-Lowry definition, you have the right to say the the conjugate bases of both molecules space OH- and also SH-. As oxygen is much more electronegative than sulfur, the will tempt electrons more than sulfur does. This method that oxygen will certainly be charged more than sulfur, and also it will desire to get a proton more than sulfur. Hence, OH- (hydroxide) is a more powerful base than SH- (hydrsulfide), which suggests that H2S is a more powerful acid 보다 H2O. This also holds through the Lewis an interpretation of one acid.
I don"t know this explanation: due to the fact that oxygen is more electronegative 보다 sulfur, it have to retain the extra electron much more strongly than sulfur! The factor H2S is much more acid than H2O is in the various bond enthalpies that S-H and also O-H.
I don"t understand this explanation: due to the fact that oxygen is more electronegative 보다 sulfur, it should retain the extra electron more strongly than sulfur! The reason H2S is much more acid 보다 H2O is in the various bond enthalpies of S-H and also O-H.
Yes, the will want to retain the electron more, and it will certainly hog it in the direction of itself. Oxygen will be much more negatively charged than sulfur once compounded with hydrogen, so that will want to obtain a proton more than sulfur (protons will be attracted an ext towards oxygen).
I"m surprised that nobody has mentioned the function hydrogen bonding dram in the comparison of these two compounds and also the pH impacts that distinction leads to.
Yes, the will desire to maintain the electron more, and it will certainly hog it towards itself. Oxygen will certainly be more negatively charged than sulfur when compounded through hydrogen, so that will want to receive a proton an ext than sulfur (protons will certainly be attracted more towards oxygen).
But the bond between H+ and OH- is no ionic, is covalent; it method that the fee on the ion doesn"t count an extremely much, what counts is the capacity of developing a covalent bond between one of the lone pairs on the oxygen and also the proton, the is the possibility for the oxygen come *give* a pair of electrons to the H+.
I"m surprised that nobody has mentioned the function hydrogen bonding theatre in the compare of these 2 compounds and also the pH results that distinction leads to.

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I believed the hydrogen link were more responsible the properties like boiling suggest and vaporization enthalpy, yet I"d choose to know your explanation.