If the following substance is dissolved in pure water, will the solution be acid
ID: 608159 • Letter: I
Question
If the following substance is dissolved in pure water, will the solution be acidic, neutral, or basic? a) Solid sodium carbonate-(Na2CO3): b) Sodium chloride- (NaCl): c) Sodium acetate- (NaC2H3O2): d) Ammonium sulfate-((NH4)2SO4): I know the answers. I just need to know why.Explanation / Answer
1. sodium hydroxide is formed in first case which is basic pertaining to alkali nature of sodium metal and metal hydroxieds are always basic 2. NaCl will form na+ and cl- ions and the solution overall will be neutral 3. The acetate ion, being the conjugate base of acetic acid, then accepts a proton from water. CH3COO-(aq) + H2O --> CH3COOH + OH-(aq). The presence of this extra OH-(aq) makes the solution basic.. 4. ammonium sulphate is the reaction product of a weak base , NH3 , and a strong acid H2SO4. The resulting salt is therefore acidic If you add (NH4)2SO4 to water , the pH will drop to below 7.00.