It is required to prepare 1 kg of 15% ammonia solution. How many grams of a 25%
| August 17, 2021 | education
It is required to prepare 1 kg of 15% ammonia solution. How many grams of a 25% solution of ammonia and water do you need to take for this?
Let’s determine the mass of ammonia in the initial solution.
m (NH3) = W (NH3) • m (solution) / 100% = 15% • 1000 g / 100% = 150 g.
The mass of 25% ammonia required to prepare a 15% solution.
m (NH3) = 15% / 25% • 1000 g = 600 g.
The mass of water for the preparation of 1000 g of solution.
m (H2O) = 1000 g – 600 g = 400 g.
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