will the following solutions be acidic, neutral, or basic? Write the net ionic equation for any reaction that takes place.
NH4Cl, KHCO3, LiClO4, NH4NO3, H2CO3, LiClO2, Ba(NO3)2
Strong acid = SA
Strong base = SB
Weak acid = WA
Weak base = WB
Salts of SA and SB are neutral.
Salts of SA and WB are acidic.
Salts of SB and WA are basic.
Salts of WA and WB may be acidic, basic, or neutral depending upon the values of Ka and Kb. The equation for the last one is H^+ = sqrt (KwKa/Kb).
so for example NH4Cl would be acidic?
yes.
To determine whether the solutions will be acidic, neutral, or basic, we need to consider the nature of the ions present in each compound.
1. NH4Cl: NH4+ is the ammonium ion, which is acidic. Cl- is the chloride ion, which is neutral. Therefore, this compound will be acidic.
The net ionic equation for NH4Cl dissolving in water can be written as:
NH4+ (aq) + Cl- (aq) → NH4Cl (aq)
2. KHCO3: K+ is the potassium ion, which is neutral. HCO3- is the bicarbonate ion, which can act as a weak acid or weak base depending on the solution. Therefore, this compound may create a slightly basic solution.
The net ionic equation for KHCO3 dissolving in water can be written as:
K+ (aq) + HCO3- (aq) → KHCO3 (aq)
3. LiClO4: Li+ is the lithium ion, which is neutral. ClO4- is the perchlorate ion, which is neutral. Therefore, this compound will be neutral.
The net ionic equation for LiClO4 dissolving in water can be written as:
Li+ (aq) + ClO4- (aq) → LiClO4 (aq)
4. NH4NO3: NH4+ is the ammonium ion, which is acidic. NO3- is the nitrate ion, which is neutral. Therefore, this compound will be acidic.
The net ionic equation for NH4NO3 dissolving in water can be written as:
NH4+ (aq) + NO3- (aq) → NH4NO3 (aq)
5. H2CO3: H2CO3 is carbonic acid. It can dissociate into H+ and HCO3- ions. Therefore, this compound will be acidic.
The net ionic equation for H2CO3 dissociating in water can be written as:
H2CO3 (aq) → H+ (aq) + HCO3- (aq)
6. LiClO2: Li+ is the lithium ion, which is neutral. ClO2- is the chlorite ion, which is neutral. Therefore, this compound will be neutral.
The net ionic equation for LiClO2 dissolving in water can be written as:
Li+ (aq) + ClO2- (aq) → LiClO2 (aq)
7. Ba(NO3)2: Ba2+ is the barium ion, which is neutral. NO3- is the nitrate ion, which is neutral. Therefore, this compound will be neutral.
The net ionic equation for Ba(NO3)2 dissolving in water can be written as:
Ba2+ (aq) + 2NO3- (aq) → Ba(NO3)2 (aq)
Remember, the determination of acidity, neutrality, or basicity is based on the nature of the ions present in the compounds.