How to get the chemical formula for copper (ii) trioxocarbonate (iv) pentahydrate
The chemical formula for copper(II) trioxocarbonate(IV) pentahydrate is CuCO3 * Cu(OH)2 * 5H2O.
To determine the formula, you need to know the charges of the individual ions involved.
1. First, identify the ions present. In this case, we have the copper(II) ion (Cu2+) and the trioxocarbonate(IV) ion (CO32-).
2. Determine the charges of these ions. The charge of the copper(II) ion is 2+, as indicated by the Roman numeral "II" in the name. The charge of the trioxocarbonate(IV) ion is 4-, as indicated by the Roman numeral "IV" in the name.
3. To balance the charges between the copper(II) and trioxocarbonate(IV) ions, we need two copper(II) ions for every trioxocarbonate(IV) ion. This is because the copper(II) ion has a charge of 2+ while the trioxocarbonate(IV) ion has a charge of 4-, so two copper(II) ions with a total charge of 4+ will balance the 4- charge of the trioxocarbonate(IV) ion. Therefore, the symbol "CuCO3" is used.
4. The presence of water molecules is indicated by the term "pentahydrate" in the name. This means that there are five water molecules associated with each copper(II) trioxocarbonate(IV) unit. The formula for water is H2O, so we multiply the water formula by 5, giving us 5H2O.
Putting it all together, we have the chemical formula: CuCO3 * Cu(OH)2 * 5H2O. Note that the Cu(OH)2 comes from the hydroxide ion (OH-) that is formed when the copper(II) ion reacts with water.