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98% pure nitric acid is obtained by...

`98%` pure nitric acid is obtained by

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To prepare 98% pure nitric acid, the following steps can be taken: ### Step-by-Step Solution: 1. **Starting Material**: Begin with a 56% concentration of nitric acid (HNO3). 2. **Distillation Process**: Use a distillation column to concentrate the 56% nitric acid. This process involves heating the solution to separate the components based on their boiling points. 3. **Use of Dehydrating Agent**: Introduce magnesium nitrate (Mg(NO3)2) as a dehydrating agent during the distillation process. This helps in removing water from the nitric acid solution, thus increasing its concentration. 4. **Resulting Product**: The distillation process will yield a highly concentrated nitric acid solution, which is approximately 98% pure. 5. **Purity Check**: The resulting 98% nitric acid will be free of sulphates and chlorates, and it will contain a low concentration of dissolved oxides. ### Final Statement: Thus, 98% pure nitric acid is obtained by concentrating 56% nitric acid in a distillation column with the aid of magnesium nitrate as a dehydrating agent. ---
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