which of the following 0.10M solutions is basic?
A LiCl
B K3Po4
C NaCLO4
D NH4NO3
Is it C?
B. K3PO4.
To determine which of the following 0.10M solutions is basic, we need to examine the cations and anions in each compound.
A. LiCl: This compound consists of Li+ cations and Cl- anions. Li+ is a neutral cation, and Cl- is a neutral anion. LiCl does not contain any basic ions.
B. K3PO4: This compound contains K+ cations and PO4- anions. K+ is a neutral cation, and PO4- is a polyatomic ion. PO4- is not a basic ion.
C. NaCLO4: This compound contains Na+ cations and CLO4- anions. Na+ is a neutral cation, and CLO4- is a polyatomic ion. CLO4- is not a basic ion.
D. NH4NO3: This compound contains NH4+ cations and NO3- anions. NH4+ is a polyatomic cation known as ammonium. NH4+ can act as an acidic ion in solution, but it can also act as a weak base, making NH4NO3 a weakly basic solution.
Therefore, the correct answer is D. NH4NO3.
To determine which of the 0.10M solutions is basic, we need to identify the compound that will produce hydroxide ions (OH-) when dissolved in water. Hydroxide ions are responsible for the basic properties of a solution.
Let's analyze each compound:
A) LiCl: Lithium chloride (LiCl) dissociates into lithium ions (Li+) and chloride ions (Cl-) when dissolved in water. It does not produce hydroxide ions, so it is not basic.
B) K3PO4: Potassium phosphate (K3PO4) dissociates into potassium ions (K+) and phosphate ions (PO4^3-) when dissolved in water. It also does not produce hydroxide ions, so it is not basic.
C) NaClO4: Sodium perchlorate (NaClO4) dissociates into sodium ions (Na+) and perchlorate ions (ClO4-) when dissolved in water. Again, it does not produce hydroxide ions, so it is not basic.
D) NH4NO3: Ammonium nitrate (NH4NO3) dissociates into ammonium ions (NH4+) and nitrate ions (NO3-) when dissolved in water. However, ammonium ions (NH4+) can react with water to produce ammonium hydroxide (NH4OH), a weak base. Therefore, NH4NO3 can be considered a basic solution.
So, the correct answer is D) NH4NO3.