HW2_27 - 4 1-which ionizes to give an acidic solution....

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Homework due 2/27 Indicate whether aqueous solutions of the following salts would be acidic, basic, or neutral. For solutions that are not neutral indicate which ion is causing the solution to be acidic or basic LiC 2 H 3 O 2 - Basic - comes from the strong base LiOH and the weak acid HC 2 H 3 O 2 . LiC 2 H 3 O 2 ---> Li 1+ + C 2 H 3 O 2 1- The C 2 H 3 O 2 1- ion undergoes hydrolysis C 2 H 3 O 2 1- + H 2 O HC 2 H 3 O 2 + OH 1- NaH 2 PO 4 - Basic - come from the strong base NaOH and the weak acid H 3 PO 4 . NaH 2 PO 4 ----> Na 1+ H 2 PO 4 1- The H 2 PO 4 1- ion is undergoing hydrolysis. H 2 PO 4 1- + H 2 O H 3 PO 4 + OH 1- Since H 2 PO 4 1- is a weaker acid the H 3 PO 4 , H 2 PO 4 1- will be a stronger base than it will be an acid. Ca(HSO 4 ) 2 - Acidic - contains the relatively strong acid HSO
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Unformatted text preview: 4 1-which ionizes to give an acidic solution. Ca(HSO 4 ) 2-------> Ca 2+ + 2 HSO 4 1-The HSO 4 1-ion undergoes further ionization since it is a weak acid HSO 4 1-H 1+ + SO 4 1-CH 3 NH 3 Br - Acidic- comes from the weak base CH 3 NH 2 and the strong acid HBr. CH 3 NH 3 Br----> CH 3 NH 3 1+ + Br 1-The CH 3 NH 3 1+ ion undergoes hydrolysis CH 3 NH 3 1+ CH 3 NH 2 + H 1+ Ba(NO 3 ) 2- Neutral- this comes from the strong acid HNO 3 and the strong base Ba(OH) 2 . Neither ion is undergoing hydrolysis....
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