Write the formulas of the compound Al3+ formed by specified cations with the following anions:OH-, NO3-, CO3-2,HSO4-, PO4-3 . Use the given order of anions
See my explanation above.
To find the formulas of the compounds formed by the cation Al3+ with the specified anions (OH-, NO3-, CO3-2, HSO4-, PO4-3), we need to determine the ratio of the cation and anion in each compound.
1. Al3+ with OH- (hydroxide):
The hydroxide ion (OH-) has a charge of -1. To balance the charges, we need three OH- ions for every Al3+ ion. Therefore, the formula for the compound is Al(OH)3.
2. Al3+ with NO3- (nitrate):
The nitrate ion (NO3-) has a charge of -1. Similar to the previous case, we need three NO3- ions to balance the charge of one Al3+ ion. As a result, the formula for the compound is Al(NO3)3.
3. Al3+ with CO3-2 (carbonate):
The carbonate ion (CO3-2) has a charge of -2. To balance the charges, we need two Al3+ ions for every three CO3-2 ions. Hence, the formula for the compound is Al2(CO3)3.
4. Al3+ with HSO4- (hydrogen sulfate):
The hydrogen sulfate ion (HSO4-) has a charge of -1. In this case, we need three HSO4- ions for each Al3+ ion in order to balance the charges. Hence, the formula for the compound is Al(HSO4)3.
5. Al3+ with PO4-3 (phosphate):
The phosphate ion (PO4-3) has a charge of -3. We need one Al3+ ion for every three PO4-3 ions to achieve charge balance. Thus, the formula for the compound is AlPO4.
In summary, the formulas of the compounds formed between Al3+ and the specified anions are:
1. Al(OH)3
2. Al(NO3)3
3. Al2(CO3)3
4. Al(HSO4)3
5. AlPO4