Consider the following compounds and supposed that 0.5 M solutions are prepared of each: NaI, KF, (NH4)2SO4, KCN, HC2H3O2, CsNO3, and KBr. Write the formulas of those that are acidic, basic, and neutral.
The numbers are subscripts! Can some explain to me how you can determine whether one is acidic, basic, etc and how to do the problem ? thanx!
2007-01-15 01:32:08 · 2 answers · asked by trakstar16 1 in Science & Mathematics ➔ Chemistry
KCN == acidic
HC2H3O2 = CH3COOH == acidic
(NH4)2SO4 == acidic
Rest all are Neutral
KCN is slightly acidic due to hydrolysis
CH3COOH is a carboxylic acid
(NH4)2SO4 is acidic due to hydrolysis
The basis of determining whether one is acidic, basic, etc is to have a knowledge about polarity of compounds and the bronsted -lowry Acid-base theory
If the salt formed between a reaction of strong acid and strong base then its generally neutral!
e.g. KBr,KF,NaI,CsNO3
2007-01-15 01:44:30 · answer #1 · answered by Som™ 6 · 1⤊ 0⤋
you have to find the ph of each of the substances. ph = -log (h+)
h+ is the hydrogen ions in the substance. once you find the ph you can tell whether it is acidic or basic.
2007-01-15 09:38:17 · answer #2 · answered by LaurLaur 3 · 0⤊ 0⤋