Problem: Determine whether the solutions formed by each salt will be acidic, basic, or neutral.(a) NaHCO3(b) CH3CH2NH3Cl(c) KNO3(d) Fe(NO3)3

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FREE Expert Solution

Let's determine the acidity/basicity of the cation/anion in each salt and the overall acidity/basicity of the salt.

(a) NaHCO3

 Na+

▪ main group metal → group 1A → +1 charge
▪ less than +3 → neutral

HCO3­- → polyatomic ion

▪ add H+:          HCO3- + H+ → H2CO3
▪ H2CO3weak acid
▪ CO32-basic

overall

▪ neutral + basic → basic

NaHCO3 → basic



(b) CH3CH2NH3Cl

 CH3CH2NH3+

positive amines acidic

Cl­-

▪ add H+:          Cl- + H+ → HCl
▪ HCl → strong acid
▪ Cl-neutral

overall

▪ acidic + neutral → acidic

CH3CH2NH3Cl → acidic



(c) KNO3

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Problem Details

Determine whether the solutions formed by each salt will be acidic, basic, or neutral.
(a) NaHCO3
(b) CH3CH2NH3Cl
(c) KNO3
(d) Fe(NO3)3

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Based on our data, we think this problem is relevant for Professor Marville's class at UIUC.