To calculate the percentage of copper in copper(II) nitrate, follow these steps:
1. Find the molar mass of copper(II) nitrate (Cu(NO3)2):
- Molar mass of Cu = 63.55 g/mol
- Molar mass of N = 14.01 g/mol
- Molar mass of O = 16.00 g/mol
- Molar mass of Cu(NO3)2 = (63.55 g/mol) + 2 * [(14.01 g/mol) + 3 * (16.00 g/mol)] = 63.55 g/mol + 2 * (14.01 g/mol + 48.00 g/mol) = 63.55 g/mol + 2 * 62.01 g/mol = 187.55 g/mol
2. Determine the molar mass of copper in copper(II) nitrate:
- Molar mass of Cu = 63.55 g/mol
3. Calculate the percentage of copper in copper(II) nitrate:
- Percentage of copper = (Molar mass of Cu / Molar mass of Cu(NO3)2) * 100%
- Percentage of copper = (63.55 g/mol / 187.55 g/mol) * 100%
- Percentage of copper = 0.3388 * 100%
- Percentage of copper = 33.88%
Therefore, the percentage of copper in copper(II) nitrate is 33.88%.
How to calculate percentage of copper in copper( ll) nitrate
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