1. Without doing any calculations, choose the 0.12 M aqueous solutions with a pH
ID: 541117 • Letter: 1
Question
1.
Without doing any calculations, choose the 0.12 M aqueous solutions with a pH between 8 and 12.
(Select all that apply.)
NaF
NH4Cl
HNO2
Ba(OH)2
NaHCO3
Mg(CH3COO)2
none of the above
2.
Without doing any calculations, choose the 0.12 M aqueous solutions with a pH value 12 or higher.
(Select all that apply.)
NaF
HNO2
Mg(CH3COO)2
NaHCO3
NH4Cl
none of the above
Ba(OH)2
Without doing any calculations, choose the 0.12 M aqueous solutions with a pH value 12 or higher.
(Select all that apply.)
NaF
HNO2
Mg(CH3COO)2
NaHCO3
NH4Cl
none of the above
Ba(OH)2
Explanation / Answer
1. Except ammonium chloride and nitrous acids remaining all compounds it's PH between 8 - 12
Sodium floride is salt of weak acid and strong base
Magnesium acetate is salt of weak acid and strong base
Sodium bicarbonate is salt of weak acid and strong base
Barium hydroxide is strong basic nature
Ammonium chloride is salt of strong acid and weak base
Nitrous acid is acidic nature
2. More PH value for barium hyroxide
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